Digestive SystemTopic: Digestive SystemBoard: ICSEOptionSl.NoDiff. LevelQuestion1234Right OptionAnswerSkill1EasyWhat is the breakdown of naturally occurring food stuffs into diffusible formRespirationTranspirationNutritionDigestion4Digestion2MediumThe food we eat shall be charged into ---------- ------ form to be utilizedGlucose, SugarSoluble, absorb taleGlucose, energyNone3EasyWhat play a key role in the digestion of food taken inBacteriaChemicalsEnzymesAll3Enzymes4MediumCharacteristics of Enzyme are:- A. It is a protein, so it is not destroyed by heating/ B. It acts only on sub / C It acts lie a catalyst/ D. It doesn't affect the ratio of chemical reactionA & DB & CA & BC & D2It acts only on sub5HardOptimum temperature of the enzymes to be best active is-25dgree & 30 degree30dgree & 40 degree35dgree & 40 degreeNone335 n 40 degree6MediumThe digestive system comprises ofmouth & teethmouth & stomachalimentary canal & intestinealimentary canal & digestive gl&s4alimentary canal & digestive gl&s7MediumWhat is the muscular tube starting mouth & ending at the anusfood pipedigestive gl&salimentary canalnone2digestive gl&s8MediumThe length of the alimentary canal is almost7 meters9 meters12 metersnone29 meters9HardPH is the degree ogSolubility or insolubilityackus or reactionacidity or alkalinityNone3acidity or alkalinity10MediumWhat speeds up the reaction during digestionchewing food properlyeating slowlyEnzymesPH3Enzymes11MediumThe fronts limits of mouth are formed bytongue , teethupper- lower lipsteeth, lipsnone2upper- lower lips12EasyThe function of lips is anperceiving sensationspeakingsippingall4all13EasyIt helps in manipulating food while chewing & mixing salivateethlipstonguenone3tongue14MediumIt is the hardest part of the ma bodyteethnailboneNone15HardTeeth of mammals are enclosed in sockets in the bones so they arehetendantdeciduousthe codentdiphyodont3the codent16HardTeeth are different shape, size & perform different function, so they areheterodontdeciduousthe codentdiphyodont1heterodont17HardThe condition in which these are 2 set of teeth, milk & permanent is calledheterodentdiphyodontthe codentNone2diphyodont18EasyThe milk teeth are calledprimarytemporarydeciduousall4all19MediumDe teeth develops when thefoetus in 31/2 months oldchild is 6-8 months oldfoetus is 2 months oldfoetus is 41/2 months old3foetus is 2 months old20EasyPushing up of the the teeth grow is calledgrowing stagegrowthgummingteething21EasyThere are ---------------- sets of milk teeth101520none32022EasyDeciduous teeth grows completely at the age of2 yrs4yrs6yrsNone23HardThe deciduous teeth in each jaw areincisors -2, canines -2, molars -6incisors -4, canines -4 molars -2`none3incisors -4, canines -2, molars -4;24HardBetween the of ------------ & ------------------ the milk teeth start making way for permanent teeth3, 125,126,12None13, 1225EasyThe four forms teeth arecanineIncisorsmolauspremolars2Incisors26HardThe characteristics of Incises is/are:- 1. the are sharp & straight 2. their cutting edge are & chisel like 3. they have a single root canal 4. They are used for holding & flaring1 & 21 & 4all except 3all except 4Dall except 427EasyOn the either side of incisors these are onemolarscaninesprenumannoneBcanines28EasyThese are conical shaped teeth used for holding & tearing the foodincisorsmolarscaninespxmolarsCcanines29MediumCharacteristics of canines are 1. they are long & sharp 2. they are conical & pointed 3. they are used for biting & cutting 4. They have single root1 &24all except 4all except 34all except 330HardWhich of the lower jaw are the smaller permanent teethIncisorscaninespxmolardnone1Incisors31EasyNext to the Canines aremolarspremolarsincisorsnone2premolars32MediumThese are ------ no of premolars in all48caninesnone2833EasyIt helps in grinding & chewing foodmolarspremolarscaninesnone2premolars34MediumThe board humming surface of the premolars are calledHillsdrughumpscusps4cusps35MediumThe premolars are also calledwisdom teethhillscusps436HardThe bone upper molar has ------ root are rest ----- roots2,11,21,1none12,137EasyThese are ------- no of molars on either side of the similar on each jaw23462338Mediumfollowing are the characteristics of Molars: 1. they have the to 5 cusps 2. they are used for crushing & grinding food 3. the last molar develop after the jaws grows on 4. the grew at the adult stage1 & 42 & 33 & 4all4all39MediumAs on the last molar develops at the age of maturity it is calledmatured teethhererodentwisdom toothnone3wisdom tooth40MediumThe dental formula of an adult to teeth isnone341Easy142EasyThe part of the tooth which remain exposed above the gum isneckcrownrootNone2crown43EasyThe -------- remains embedded in a cup like socket of the jaw boneneckrootdentineNone2root44EasyThe slight construction between the root & the crown iscementneckboth2neck45EasySelect the proper sequence of the part a toothenamel, cement, dentine, pulpenamel, dentine, cement, pulpcement, enamel, dentine, pulpNone2enamel, dentine, vement, pulp46MediumWhat is the hardest substance in the bodydentineenamelbonenone2enamel47EasyEnamel is composed ofcalciumphosphoruswaterall4all48MediumColor of enamel is white due appear yellowish in some cases becausein some it is yellow in colorenamel is transparent & yellow dentine below shows throughbothnone2enamel is transparent & yellow dentine below shows through49MediumWhat form the bulk of the toothenameldentinecementpulp2dentine50MediumStr&s of cytoplasm of the cells runs through the minute canats ofenamelcementdentinenone3dentine51HardWhat is a soft connective issues contained in the ---- of the toothcement, cavitydentine, pulp cavitypulp, dentinepulp, pulp cavity4pulp, pulp cavity52MediumPulp consists ofblood capillarieslymphersselsnerve fibersall4all53Hardwhat consists of very small fivers which extend through the cement & into the bone socket of the toothligamenttissuesperiodontal ligamentperiodontal tissues3periodontal ligament54HardWhat serves as the shock absorber while chewingcementjaw bonesperiodontal ligamentpremolars3periodontal ligament55MediumWhat breaks the food into pieces which can be swallowedbitingcuttingchewingchurning3chewing56MediumWhat increases the surface of digestionmouth & teethtonguechurningchewing4chewing57HardNumerous ----- are found in the mucous membrane which help in digestionligamentChemicalssalivary gl&sbolus3salivary gl&s58HardThe largest salivary gl& located behind the ear issublingual gl&parotid gl&subnone2parotid gl&59MediumWhich salivary gl&s lies close to the inner of the lower jawparotidsublingualsubm&ibularnone3subm&ibular60HardSublingual gl&s are found below the -------wind pipefood pipeupper jawtongue4tongue61HardWhich form the gl&s transport the secreted saliva into the mouthsalivary amylasedietbothnone162MediumWhich tof the following is correct: 1. small quantities of saliva keeps secreting all the 2. while eating flare decrease 3. sight or smell of tasty food can cause an increase in flow of saliva 4. while eating the flow of saliva increases1 & 31 & 4all except 2all except 43all except 263EasyWhat is a digestive juice which lubricate the food & make the small pieces stick togetherenzymesalivaamylasenone2saliva64HardThe enzyme which saliva contains ismaltosebolusptyalinnone3ptyalin65HardAnother name do salivary amylase ismaltosebolusptyalinnone3ptyalin66Hardwhat acts on the stomach foods & breaks down into -------ptyalin, glucoseptyalin, stomachglucose, maltoseptyalin, maltose4ptyalin, maltose67MediumThe daily output of saliva is an adult is between ------- to -----------0.2 to 3 lt0.5 to 2 lt0.1 to 2 ltnone20.5 to 2 lt68MediumThe action of saliva con for a while even after the food is -------------digestedchewedbroken down into piecesswallowed4swallowed69HardThe food has to pass over the ----- in order to enter the ---------windpipe, stomachthroat, gulletwindpipe, gulletfood pipe to gullet3windpipe, gullet70Hardcomposition of saliva is ; saliva is acidic fluid & contains -----,------,------,-------calcium, salt, iron, ptyalinwater, salt, mucus, ptyalinwater, iron, ptyalin,none2water, salt, mucus, ptyalin71MediumWhat is a of food particles stuck together to facilitate swellfood massSalivary foodbolusnone3bolus72MediumSaliva act as a ---------, by dissolving food particles to stimulate taste butsolutesolventEnzymesnone2solvent73MediumBoiled rice taste sweet if chewed well becauseptyalin converts starch in glucoseptyalin converts glucose intoptyalin converts starch into Maltosenone4none74MediumWhat cleans the mouth & destroy to prevent tooth decaytoothpastemedicinesalivaNone3saliva75HardSaliva aids is -------- -------- in the body by giving a feeling of -------- to body waterwater shortage, thirstwater balance, thirstwater imbalance, thirstnone2water balance, thirst76MediumAction during swallowing are 1. The tongue forces te bolus in the pha 2. the soft plate opens the opening between the throat & the nasal passage 3. the soft plate closes the opening between the throat & nasal passage 4.The is pulled upward the epiglottis closes in classing1,2,41,3,4allnone21,3,477HardWhen the ------ closes the opening of remains only one passage for the swallowed food calledgulledphaesophagusboth 1 & 34both 1 & 378HardWhat is a flap the back of the tonguesoft platepalateharynxepiglottis4epiglottis79MediumWhat prevents the food from entirety into the windpipepalateepiglottisbothnone2epiglottis80MediumSwallowing food is ----- action at the beginningreflexautomatecomplexvoluntary4voluntary81MediumWhen the food reached the back of the mouth swallowing action becomes ---------------- actioncomplexreflexvoluntarynone2reflex82MediumWhen the food reaches the esophagus it is conducted behind by a special movement calledcontractionrelaxationperistalticnone3peristaltic83MediumThe wave of constriction caused by the circular muscles of the which pushes the food along is calledrelaxationconstrictionperistalsisnone3peristalsis84MediumThe ----- is a slimy fluid secr by the gut which lubricates the foodsalivapusMucusnone3Mucus85EasyWhat is the tube which passes a conducts the food from the throat to the stomachfood pipewindpipeesophagusnone3esophagus86MediumSolid food passes through the gut in ----- while liquid food takes ----------- seconds6 -8; 2 -36 - 8;3 - 45-6;3-45-6;2-316 -8; 2 -387EasyDigestive does not take pace in -----mouthfood pipegutnone3gut88EasyThe ---- is an elastic bag which stretches to collect foodduodenumintestinepancreasstomach4stomach89HardThe walls of stomach are highly --- & ------- the food, turns it into a ---- & release it in small quantities to the rest of the --------flexible, grind, pase, body partsmuscular, churn, liquid, almentary canalmuscualr, grind, liquid, body partsmuscular, churn, pase, alimentary canal4muscular, churn, pase, alimentary canal90HardThe ---- is a circular b& of muscles at the lower end of the stomach which stops solid food particles from passing throughchimepyloric sphinctercaseinnone2pyloric sphincter91HardThe ---------- prevents regurg taken from the duodechimecaseinpyloric sphincterNone3pyloric sphincter92MediumThe gastric gl&s in the stomach secrete gastric juice containing the enzyme-------chimecasesinogmpepsin4pepsin93MediumPepsin acts proteins so it is calledpeptidesproteasebothNone2protease94EasyPepsin breaks protein into soluble compounds calledproteasepeptideschimenone2peptides95EasyThe enzyme found in children act upon the soluble milk protein inprotcaserennincaseinogenscasein1protcase96MediumRennin acts on milk protein ---- & converts it into insolubleprotease, caseinprotease, caseinogenscaseinogens, caseincasein, caseinogens3caseinogens, casein97EasyAn average adult's stomach can hold ------- to ----- liters of food3,42.31,24,522.398EasyThe gastric secreted by the lining of stomach iscolor less, highly acidiccontain watercontain hydrochloric acid & pepsinall4all99MediumThe function of Gastric juice is fare 1. to hill germs which may enter with the food 2. activates pepsin to act an carbohydrates 3. activated pepsin to act on proteins 4. acts on pepsinogen to produce pepsin1,2,41,3,4all1100MediumThe food stays in the stomach for about ----- hrs & attains a pulp like form called -------4, pulp3,pulp3, chimenone33, chime101EasyThe -----allows the chime to enter little by little to the small intestineb&pyloric sphincterscavitynone2pyloric sphincters102EasyWhen the stomach is overloaded or disturbed ----- occurs because the front -------- opens & ----- is caused theory the content through the mouthcommitting, pie , sphincter, peristatorsvomiting, pylorus sphincter, ontiperistalsisolycenty, peplum valve, backflownone2vomiting, pylorus sphincter, ontiperistalsis103MediumPylorus is an opening foresophagus into stomachmouth cavity into esophagusstomach into intestineIntestine into rectum3stomach into intestine104EasyGastric juice centaursHCL & pepsinpepsin & tyrosinetyrosine & HCLamylopsin & pepsin1HCL & pepsin105MediumThe dimes of small intern are ----- meters in length & ---- can wide8, 37, 37, 2.58, 2.537, 2.5106MediumThe ----- is coiled & flooded in the abdomenduodenumvilesmall infestingnone3small infesting107EasyThe small intestine has regions to sequence calledduodenum, item, jejunumduodenum, jejunum, ileumduodenum, jejunum, villanone2duodenum, jejunum, ileum108EasyWhat is the short folded or looped upper part of the small intestineduodenumjejunumileumnone1duodenum109EasyThe -------- form the liver & ----- from due pancreas pour their fluids into the duodenumqdile dust, pancnatic dustbile dust, pancreatic dustbilirubin, biliverdinbile dust, biliverdinbilirubin , pancake dust1bile dust, pancreatic dust110EasyNext to the duodenum is the ----- which means emptyIleumjejunumpancreasnone1jejunum111EasyThe final stapes of digestion takes place in thepancreasjejunumileumnone3ileum112MediumThe ileum secrets ---- liters of intestinal juice in adults1,22,33,42,422,3113MediumThe finger like p in the inner line of the ileum are calledlacteallegumevillanone3villa114MediumThe celli containsan artery ,a veininter connective blood capelinslactealall4all115Hardthe inner surface are provided by villa facilitates the ----- of digested foodfiltrationfarabsorptionnone116EasyThe ---- serves both for digestion & absorption117EasyThe yellowish green watery fluid produced in the liver isbiliverdinbilirubinbilenone3bile118Hardthe common bile dust is forward by the ----- & -----hepatic, cysticenter peptic, end pepticend peptic, hepaticnone1hepatic, cystic119EasyThe bile gets temporarily stored in the ---------liverpancreasstomach into intestinegall bladder4gall bladder120MediumThe color of the bile is due to the pigmentstyrosine, steapsinbeliverdin, belirubinerepsin, lipaxnone2beliverdin, belirubin121MediumThe --- & --- are forward by the break down of the dead & worh out RBCserapsin, tnjpsinbilirubin, biliverdinerapsin, biliverdinnone2bilirubin, biliverdin122HardBile contains lot of ---- to neutralize the acid content of the food received from stomach & make it ---------bile salt, alkalinesodium bicarbonate, alkalinebothnone3both123HardBile salts reduce the ---- of fats &--- thensurface tension, decomposesurface area, emulsifierssurface tension, emulsifiesnone2surface area, emulsifiers124MediumThe enzymes sec the pana mylopsin, trypsin, steapsina mylopsin, lipase invertasetrypsin invertase, lipaseNone1a mylopsin, trypsin, steapsin125HardWhich digest left over starch into maltosea mylopsintnpsinlipasenone1a mylopsin126HardWhat acts on the remaining proteins & --- to produce smaller peptides & ----trypsin, polypeptides, anuno acidssteapsin, emulsidied fat, glyceroltrypsin, trypsinogen trypsin (active)none1trypsin, polypeptides, anuno acids127HardThe enzyme ------- converts the inactive trypsinogen to active-----enterdcinase, trypsinenterokinase, maltoseenterokinase, amino acidnone1enterdcinase, trypsin128HardWhat acts on emulisified fats to convert them into ------- & --------steapsin, fatty acids, glycerolproteiun peotites, aminoacidssteapsin, fatty acids, glucosenone1steapsin, fatty acids, glycerol129MediumThe intestinal juice the ------- converts peo into amino acideropsinmaltasesucraselactose1eropsin130HardIn the intersinal juice, the -------- converts malose into --------maltose, glucosemaltose, galactoselactase, glucesenone1maltose, glucose131MediumThe sucrase in the intestine convert sucrose into ---------glucosefructosebothnone1both132EasyThe Lactose converts the Lactose into -----glucosegalactosebothnone3both133MediumThe -------- converts ---- fats into ----- & glycerollipase, emulisified, fatty acidmaltose, emulsifies, amino aciderapsin, eamlsified, fatty acidnone1lipase, emulisified, fatty acid134HardThe final products of the food are absorbed in the --------large in testinesmall in testinepancreasnone2small in testine135MediumThe following are absorbed throught the thin epithelium of the villi & reach blood cappileries 1. amino acid 2. simple sugar 3. fatty acids 4. glycerol1 & 23 & 4allnone11. amino acid 2. simple sugar136HardWhat are the first to reach the liver through the hepatic portal veinfattly acid, glycerolfally acid, amino acidfattly acid, simple sugaramino acid & simple sugar4amino acid & simple sugar137HardThe ------ & ------ are abosored tnto the lymph vessel to enter the lympatic systen & finally to the blood streamamino acids, glucosefatty acid, glycerolboth 1 & 2none138EasyIt takes about ---- hrs to enter the large intestine342 yrsnone24139HardThe completely digested food in ilenm is called ---- amino acidamino acidsglycerolglucosechyle4chyle140MediumIt is a physiological procen by which various substances pan across layer of cells ito the internal environment of the bodyingestiondisgestionabsorptionejecktion3absorption141EasyThe large intestine is about ------- meters long234none23142EasyThe parts of large intestine arecaecum, colon, rectumcolon, caecum, rectumduoderum, jejunum,ilenmnone1caecum, colon, rectum143MediumThe --- is a blind pouch situated at the junction of the small & large intestinecoloncaecumrectumnone2caecum144MediumThere is a narrow worm like structure at the clind end on the caecum isvermifom appendixrectumpancreasnone1vermifom appendix145MediumWhich is the vestigial organ in humanpancreascolonappendixnone3appendix146HardThe ---- in the colon digest part of the fibre to form ----- which the colon can absordvirus, fattly acidsbacteria animo acidsbacteria, fattly acidnone3bacteria, fattly acid147EasyThe ----- absorbs much of the water from the undigested residuescaecumcolonrectumnone2colon148MediumWhich salts are absorbed in the & returned to liver by blood circulationcaecumcolonrectumnone2colon149EasyThe material passing intot the large intestine are :- 1. water with undigested matter 2. cellulose & roughape 3. mucus 4. dead cells from the almentary canal1& 23& 41& 4all4all150EasyThe final region of the alimentary canal ends up atileumcaecumanusbowels3anus151EasyThe semi solid digested which isurinefeacesstoolboth 1 & 34both 1 & 3152EasyThe act of expelling feaces isagestiondeflectionbothnone3both153EasyThe feaces constists : 1. water, dead bacteria 2. fat 3. protein 4. rough1 & 42& 43 & 4all4all154MediumConversion of the absorbed digested food into body material isconversionassumilationabsoptionnone2155MediumDigestive food & absorbed food in wa throughhepatic portalbylupatic systemdeanummation systemboth 1 & 22156MediumSimple sugar isglucose, fructose, galactoseglucose fructose, maltoseglucose, surcose, maltosenone1glucose, fructose, galactose157EasyDigested food which is carried to the liver aresimple sugar, amino acidvitamins, mineralsallnone3all158EasyThe absorbed food are carried to me liver ny the ---- veinhepaticportalhepatic portal4hepatic portal159EasyThe -------- can the excess glucose or excess simple sugar into ----------glactoseglycerolglucosenone3glucose160HardThe glucose is needed in the body of ---------- in cellular ------- & in the ---------- of certain compoundenergy, respiration, synthenisfood, organism, assimilaenergy, organism, assimilationnone1energy, respiration, synthenis161EasyThe ----- serve as building block of proteinfattly acidsglycerolamino acidsnone3amino acids162MediumExcess amino acids are broken down in the ----- by a process called--------pancreas, fermentationliver, deaminatainpancreas, deaminationliver, fermentation2liver, deaminatain163EasyThe process in which nitrogen containing amino groupis remarked & converted into urea for excretion & the removing part from glucose to utilisationdepositionconversiondeamirationnone4none164HardWhich is the largest gl& in the bodypancreaslarge intestineliversmall intestine3liver165HardThe ---- lies beneath the diaphragm & partly overlaps the stomachpancreasappendixlivercolon3liver166EasyBlood flow in the liver is over ----- per minute1/2 lt.a liter2 litersnone2a liter167EasyBody's main metabolic center iscolonheartpancreasliver4liver168HardIn the liver all the function asre carried out by only one type of cellepithetial cellriplasmaliver cell4liver cell169HardThe converts blue green color of fehing's solution to ---------redyellowdeeep reddeep brick red4deep brick red170HardThe constit of food is -------- if the & result of fest shows whote to yellow, yelllow to orange clour after adding ammonium hyroxideamino acidsproteinsfatsnone2proteins171HardThe constituant turns blue black after adding iodine solution indicates the presenceamino acidsstarchglucosenone2starch172HardIf ash does not burn after continnd heating it indicatespresence of mineral substancefat cunstancepresence of fatty acidsnone1presence of mineral substanceDifficulty LevelEasyMediumHardOption1234

1,2.2,3----------1,2,2,32,2,1,3----------2,2,1,32,1,2,3----------2,1,2,32,1,2,3----------2,1,2,3

Eco systemTopic: Eco SystemBoard: ICSEOptionSl.NoDiff.LevelQuestion1234Right OptionAnswerSkill1MediumA functionally independent unit of nature where living organism interact among themselves and with their physical environmentenvironmentneighborhoodscriptumnone3scriptum2EasyWhat is primary need of all organismshelterfoodclothesnone2food3EasyThe general interrelationship between the plant like and animal life irrespective of the physical feature where they survive isfood producerfood consumesbothnone3both4EasyPools and puddles are not ecosystems asthey are temporarythey are produced by rainthey are produced by other overflowing virusall4all5EasyPond is an ecosystem because:- 1.it has varied mix life 2. green plants are food producers and serve food to in the pond 3. numerous fungi and bacteria decomposes the dead remains to replenish natural 4. soil is useful for plants and animals in the pond1 & 22 & 31 & 4all4all6EasyPlants produce their own food through photosynthesis and hence arefood producerautotrophyheterotrophicnone2autotrophy7EasyA wmals which directly eat the plant directly consumes their parts are calledautotrophsherbiveresdirect cannmesprimary consumers4primary consumers8EasyAnimals that feed on primary consumers aresecondary consumersherbiveresplantall1secondary consumers9EasyAnimals that feed on secondary consumers areflesh eaterssecondary carnivoroustertiary consumersall4all10EasySecondary carnivorous which eat the primary cannivores are calledprimary carnivoroussecondary carnivoroustertiary consumersnone3tertiary consumers11EasyPlants which occur naturally in a particular area are calledplant systemvegetarionfloraall3flora12EasyAnimals which lives naturally in a particular area is calledanimal kingdomanimal lifefaunaall3fauna13EasyWhich of the following is component of eco system 1. plants 2. animals 3. air 4. water1 & 23 & 41 & 4all14EasyPlants, animals and microorganism are --------- of eco systemliving componentbiotic componentabiotic component1 & 24living component, biotic component15EasySunlight, air, water, are components of eco systemnon livingabioticbiotic1 & 24non living, abiotic16EasyWhich of the following are the abiotic component of ecosystemairplantanimalsall1air17EasyWhich of the following are the bitic component of ecosystemwaterplantsairall2plants18EasyGreen plants in the forest belongs to Trophic level12342219EasyRats, rabbits, dear directly eat the fruits, seeds, flowers etc belong to tropic level12342220EasyTiger, wolf, lilzard, feed on herbivaves belong to tropic level23412221EasyFlesh eater which cansume secondary consumers like peacoak belong to tropic level12344422EasyDead material eaters are calledscavergersdecomposersetrivoraonsall3etrivoraons23EasyScavergers areanimal that feed on only dead animalsanimals that feed on other animalsanimals that feed on herbivorousanimals that feed on Carnivorus1animal that feed on only dead animals24EasyOrganisms that break down the dead organic metatial are calledorganic componentsdecomposersbothnone2decomposers25EasyScavergers and decomposers are calledsecondary consumersprimary consumerstritiary consumersdetritivores4detritivores26EasyWha is the abiotic compoment which help in the production of food by photosynthesisairwatersunlightnone3sunlight27MediumWhich of the following is not a function of air in ecosystemprovide O2 to animals & plants for respirationsprovide CO2 for phtosysthesisprovide warmthhelps in disposal of seeds3provide warmth28HardWhich among the following infulences the kind of body functions in plants and animals living in particular areawaterairsoilwarmth4warmth29MediumThe formost compound on the forest ecosystemwaterairsoilall3soil30MediumWhich of the following is true:- 1. soild contains water and minreals required for animals 2. soil contains microorganisim 3. it is a dwelling for burrawing animals and earth warms 4. Tree, frass, bush grow in the soil1& 23 & 42, 3 & 4all32. soil contains microorganisim 3. it is a dwelling for burrawing animals and earth warms 4. Tree, frass, bush grow in the soil31MediumSoil is found in the watersoil remain floatingsoil is present are the bottombothnone2soil is present are the bottom32MediumWhich of the following are found in the tropical rain forestevery green trees, bamboos frem, shrubsdeciduosis trees, pines, oakconifrem trees, fir pineall1every green trees, bamboos frem, shrubs33EasyVery few animals are found intropical rain foresttemperature deciduosis forestconifrem forestall3conifrem forest34MediumIn the forest at high altitudes the most like trees found arebambooshrubsfermsfir4fir35EasyWide varities of foor and farm is found inrain forestdeciduosis forestconifrem forestall1rain forest36MediumThe fo organism in which each organism eats athe lower member and itself being eatan by its higher member infood chainfood webfood cycleall1food chain37MediumA pattern of servral entir connecting food chians in a natural community of dfferent organic isfood pyramidfood cyclefood webfood cluster3food web38EasyGenerally steps in a food chain may be from2 to 52 to 72 to 8none12 to 539MediumWhat is the only link between the organic and inorganic wter in a food chainwatersoilplantanimals3plant40Mediumwhat transfer inorganic chemicals into organic compound for consumption of other living things in the eco systemmicro organismplantssoilnone2plants41MediumWhich of the following is advantage of food webfood webs provides alternative foodensure better chanee of survival of an organicbothnone3ensure better chanee of survival of an organic42MediumRepresentation of decreasing numbers of individuals and their decresding body narves eash next higher leverl in food chainisfood pyramidfood webfood cyclenone1food pyramid43MediumIn bioman pyramid which of the following criteria is concernedamong of food cousumed in the lifeno. of individuals consumedman of individuals consumedall3man of indiciduals consumed44MediumWhich of the following is danger for ecosystem:- 1. industrialization 2. climate change 3. food and water storage 4. exploitation of natural resources1 & 23 & 4al except 2all4all45MediumDeer in a food cain would ocupy the positive oftertiary counsumerssecondary consumersprimary comsumersproducer3primary comsumers46MediumA rat in a food chain occupies positive ofprimary consumerssecondary consumerstertiary consumersproducer1primary consumerslevelright1122334

Respiratory SystemTopic: Respiratory SystemBoard: ICSEOptionSl.NoDiff.LevelQuestion1234Right OptionAnswerSkill1MediumThe chemical present of releasing energy break down glucose for carrying act life processdigestingassimilationinhalationrespiration4respiration2MediumRespiration that occurs inside the living cells, and yields energy is calledtrue respirationcellular respirationvascular respirationtransfusion2cellular respiration3MediumAnother name of cellular respirationmolecular respirationtranspirationdiffusiontissues respiration4tissues respiration4MediumThe breakdown of glucose occurs inthe cytoplasm of the cellthe mitochondriabothnone2the mitochondria5MediumThe breakdown of glucose occurs with the help ofstarchglucoseenzymesnone3enzymes6MediumThe energy liberated in the breakdown of glucose molecule ifin the form of heat energyin the form of chemical energybothnone3both7MediumThe chemical energy generated during the breaking down of glucose isADPATPenzymesall2ATP8MediumAnimals head uses energy than plants becauseanimals do physical workanimals need toanimals need to produce mass heat energyall4all9MediumWhich of the following need more heat energybirdsinsectsreptilesmicroorganism1birds10MediumWhich energy helps to keep the body warmchemical energyheat energykinetic energynone2heat energy11MediumPeople shi or clatter teethgain extra strengthto drive away fearto drive away dangeremergency activity of muscular to produce extra heat4emergency activity of muscular to produce extra heat12MediumCellular activity get energy frommineralsoxidant of glucosevitaminall2oxidant of glucose13MediumWhen diet supply of carbohydrates is not supported:- 1. cells break down the protein to produce glucose 2. cells break down the fats to produce glucose 3. cells cannot produce glucose in absence of carbohydrate 4. cells dies1 & 23 & 41, 2 & 3none11. cells break down the protein to produce glucose 2. cells break down the fats to produce glucose14MediumIn protein to rich glucose is available fromliverpancreaslarge intestineall1liver15MediumWhich of the following is the over all equation of respirationC6H12O6+6CO2 --> 6CO2+6H2O +energyC3H6O3+3O2 --> 3CO2 + 3H2O + energy2C6H12O6 + 12O2 --> 12OO2 +12H2O + energynone1C6H12O6+6CO2 --> 6CO2+6H2O +energychemical steps in respiration16MediumWhat happen to the amino acids absorbed through protein digestionbroken down into glucosebroken down into nitrogenous part anbothnone31. broken down into glucose 2. broken down into nitrogenous part an17MediumWhere is the glucose produced through in flesh eaters standas glycogen in liveras fat under the skinas amino acidsas use far excretion1as glycogen in liver18MediumAccumulation of -------- gives us the feeling of fatiguefolic acidamino acidlactic acidall3lactic acidKinds of Respiration19MediumWhere does anaerobic respiration take place in animals and humansblood cellsskeletal muscular cellsnerve cellsall2skeletal muscular cellsKinds of Respiration20EasyIn which of the following situation anaerobic respiration does not takes place in humanswimmingweight liftingfast running3Kinds of Respiration21Mediumthe product of anaerobic respiration in the muscles isamino acidslactic acidhydrochloric acidnone2lactic acidKinds of Respiration22HardAccumulation of ------- gives us the feeling of fatiguefolic acidamino acidlactic acidall3lactic acidRespiratory system23HardThe feeling of fatigue caused due to anaerobic respiration calledperspirationtirednessoxygen debtoxygen loss3oxygen debtAnaerobic respiration24MediumThe chemical formula of anaerobic respiration in animals isC6H12O6+6CO2 --> 6CO2+6H2O + 686 k cal energyC3H6O3+3O2 --> 3CO2 + 3H2O + 383 K cal energy2C6H12O6 + 12O2 --> 12Co2 +12H2O + 686 k cal energynone1C6H12O6+6CO2 --> 6CO2+6H2O + 686 k cal energychemical steps in respiration25HardWhich of the following is the chemical equation in human of ATPC6H12O6+6CO2 -->6CO2 +6H2O +38ATP +420 cal2C6H12O6 + 2O2--> 12CO2 + 12 H2O +76 ATP +840 Kal2C3+ H6O3 --> 6CO2 + 3H2O +38 ATP +420 K CALnone1C6H12O6+6CO2 -->6CO2 +6H2O +38ATP +420 calchemical steps in respiration26HardChemical equation of anaerobic respiration isC6H1206 --> lactic acid +2ATP + heat energy2C6H12O6 -->lactic acid + amino acid+ 4ATP + heatC6H12O6 -> amino acids +2ATP + heatnone1C6H1206 --> lactic acid +2ATP + heat energyAnaerobic respiration27MediumWhich of the following is characteristic of anaerobic respirationreaction can continue for longlactic acid has toxic effect on cellsCo2 is producednone1reaction can continue for longAnaerobic respiration28MediumAnaerobic respiration in animals differs from that in animals byCo2 is released in plants and not in animalsO2 is used in respirationheat energy is releasedglucose is the ultimate product1Co2 is released in plants and not in animals29HardWhich of the following are the major parts of respirationbreathing, gascon transport, tissue respirationbreathing, gascon transport, cellular rebreathing garcon , tissue respiration, cellar respirationbreathing, tissue respiration, cellular respiration3breathing garcon , tissue respiration, cellar respirationParts of Respiration30MediumThe physical process in which air is taken in and forced out isrespirationgaseous transportbreathinginhaling3breathing31EasyThe lungs absorbs --------- through bloodairoxygenCo2none2oxygen32HardThe oxygen is connected by RBC through the body aspurified oxygenarterial oxygenoxy hnone3oxy h33MediumThe --------- carries oxygen in the lungs to the bodynervestissuesarteriesnone3arteries34MediumThe ------ carries the Co2 from the lungsveinsarteriestissuesnone4none35HardCarbon dioxide in the bloods is transferred in the foam ofcarbonate and hemoglobinbicarbonate and hemoglobincarbanion, hemoglobin & carbonatecarbonino, hemoglobin, & bicarbonate4carbaminohemoglobin, & bicarbonateRespiratory system36HardCarbon dioxide in plasma canines as dissolved ascarbonatescarbanionsbicarbonatesnone3bicarbonates37MediumThe carrying oxygen and carbon dioxides through the capillaries iscellular respirationtissue respirationbreathingall2tissue respiration38MediumThe chemical changes that occurs inside the cell to release energy isrespirationtissue respirationchemical respirationcellular respiration4cellular respiration39HardCellular respiration occurs in the from ofglycolysis, krebs cyclesbreakdown of glucosebreak down of lactic acidnone1glycolysis, krebs cycles40HardWhere does glycolysis occur 1. in cytoplasm 2. outside the mitochondria 3. inside mitochondria 4. in mitochondria1&21 & 3341in cytoplasm, outside the mitochondria41MediumEnd product of glycolysis in animals isethanollactic acidcarbonic oxideall1ethanol42MediumThe HT released during respiration are removed in the mitochondria through O2 by followingwatervaporfoamnone1water43EasyThe reparatory system comprisenose, pharynx, larynx, trachea, lungsnose, phonyax, trachea, bronchi, lungsnose, phonyax, larynx, trachea, bronchi, lungsnose, mouth, pharynx, larynx, trachea, lungs3nose, phony ax, larynx, trachea, bronchi, lungsRespiratory Organ44MediumFunction of nose is:- 1. it warms air, 2. moister the air, 3. traps harmful particles, 4. smee1 & 41,2 & 42,3 &4all41. it warms air, 2. moister the air, 3. traps harmful particles, 4. smee45MediumWhich of the following is the function of mucous in the nasal chambermoister airwarm airtrap harmful particlesnone3trap harmful particles46EasyThe sensor cells of smell are located inlarynxpharynxnasal chambernone347MediumThe ---- is the common passage for foodlarynxpharynxtracheanone2pharynx48MediumThe pharynx leads to 1. food pine 2. wind pipe 3. trachea 4. ocps phagans1& 21 & 41 & 3none11. food pine 2. wind pipe49EasyThe flap which guards the entire of trachea istrachea coverepiglottismucousnone2epiglottisRespiratory system50EasyIncomplete closure of epiglottis daubery swelling causesvomitingcoughsneezenone2cough51MediumAdam's apple islarynxpharynxtracheanone1larynx52EasyThe larynx has ----- which generates soundsound boxvocal chordsvocal chordsnone3vocal chords53MediumThe ---- energy from the larynxtracheavocal chordspharynxnone1trachea54HardThe trachea remains partly co by the ---- in the neckvocal chordsbronchithyroid glandnone3thyroid gland55MediumWhich is the followings are the function of the C- shaped rings of cartilage of wall of :- 1.provide flexibility 2. allow movement 3. keep the trachea distended 4. strengthen its wall1 & 23 & 4all except Call31.provide flexibility 2. allow movement distended 4. strengthen its wall56MediumThe ---- is channel between the trachea of the lungslarynxvocal chordspharynxbronchi4bronchi57HardThe -------- of the bronchi has circular cartilaginous rings to keep then distendedprimary bronchisecondary bronchitertiary bronchibronchioles3tertiary bronchi58MediumThe bronchioles ends up in a cluster of chambersalveolitertiary bronchiciliated chambersnone1alveoli59MediumOxygen from the air first dissolves in the fluid layer of which parttracheasecondary bronchitertiary bronchialveoli4alveoli60HardThe protecting inner lining of respiratory organ is farmed bystratified musclesciliated epitheliumsqualors epitheliumglandular epithelium2ciliated epithelium61MediumWhat are pair of spongy and elastic organs of respiratory systembronchilungslarynx pharynxnone2lungs62EasyNo of lobes in left lungs are ----- and that of right one2,33,22,2none12,363MediumThe left lung is smaller then the right toaccommodate liveraccommodate gall bladderaccommodate heartnone3accommodate heart64HardWhich of the following act as a lubricators in the movement of the lungsmusclesebumpleural fluidnone3pleural fluid65MediumThe greater part of the thoracic cavity is occupied bypharynxlarynxlungsbronchi3lungs66HardVisceral pleura is the inner membranes lining of the --------bronchiinner lining of lungstrachea bronchiouter lining of lungs1bronchi67HardWhich of the following is the outer lining of lungspleuravisceral pleuraparietal pleurapleural membrane3parietal pleura68MediumThe ------- blood is pumped into the lungs through the pulmonarydeoxygenated, arteryoxygenates, veindeoxygenated veindeoxygenated artery1deoxygenated, artery69MediumThe oxygenated blood is pumped acts by the lungs throughpulmonary veinpulmonary arterycapillariesnone1pulmonary vein70EasyWhat is the process of inhaling and exhaling is calledrespirationinspirationbreathingnone3breathing71MediumWhich of the following are phases of respiratory cycleinspiration, expiration, respiratory pauseinhalation, exhalation, respiratory pauseboth 1& 2none31. inspiration, expiration, respiratory pause 2. inhalation, exhalation, respiratory pause72MediumWhat is the breathing rate in adult11 - 15 breaths /min12 - 18 breath/min15-20 breath/minnone212 - 18 breath/min73MediumWhat is the rate of breathing in an infant20-30 breaths/ min30-40 breaths/min40-50 breath/min60 breaths/min460 breaths/min74MediumWhat causes increase in the breathing rateincrease in fat in bloodincrease in oxygen content in bloodincrease in carbon dioxide content in bloodnone3increase in carbon dioxide content in blood75EasyWhich of the following is the result of increase in side of thoracic cavityinspirationexpirationperspirationbreathing1inspiration76MediumCombined action of ribs and diaphragm during inhalation causesincrease in the size of thoracic cavitydecrease in the size of thoracic cavitybothnone1increase in the size of thoracic cavity77EasyDuring inspiration the internal intercostals muscles --------contractrelaxmovenone2relax78HardDuring inhalation the ------- contracts, it -------- form it's down shape outlinerib muscles, fallsdiaphragm, flattersrib muscles, broadensnone2diaphragm, flatters79HardThe ------- allows the passage esophagus and two major blood vesselsribsdiaphragmlivernone2diaphragm80MediumWhen the lungs expand, the air pressure inside is -----increaseddecreasedhas no effectnone2decreased81MediumThe external enter coastal relaxed duringinhalationexhalationtranspirationnone2exhalation82EasyThe diaphragm is ------ exhalationrelaxedcontractsflattersnone1relaxed83MediumThe breathing monuments are controlled by the ------- centered located in the ----- of the brainbreathing,breathing, medulla oblongatarespiratory, medulla oblongatanone3respiratory, medulla oblongata84EasyWhat is the cause of stimulation of the respiratory center of the brainO2H2OCO2none3CO285HardAir breath in and out in a normal breathing is calledaspiratory volumetidal volumevital capacitytidal capacity2tidal volumeLung capacities86MediumTidal volume of normal human adult is200ml300ml400ml500ml4500ml87HardTidal air left out in trachea and bronchi is calledair spacevital air spacetidal air spacedead air space4dead air space88MediumPlace where no diffusing of gases can occurs is fartracheabronchibothnone31. trachea 2.bronchi89HardThe tidal air contained in air sacs is calledair spacealveolar aircomplementary airnone2alveolar air90MediumTotal capacity of complemental air is1000ml2000ml3000ml4000ml33000ml91HardThe maximum total volume of air that can be taken in or out by the during impiration and expiration is calledtidal capacityVitol capacitytotal lung capacitynone3total lung capacity92MediumMaximum held at any time by 2 lungs is3000ml4000ml5000ml6000ml46000ml93EasyWhich of the following are true about exposed air then imposed air 1. it contains less oxygen and more carbon dioxide 2. it contains more water vapor 3. it is warmer 4. it does not contain bacteria1 & 21,2,& 41,2 & 31,3 & 43.1. it contains less oxygen and more carbon dioxide 2. it contains more water vapor 3. it is warmer94EasyWhich of the symptoms may occur due to lack of oxygendizzinessunsteady visionloss of hearingall4all95MediumSick nests caused due to deficiency of oxygen in the tissueshypoxiaasphyxiationbothnone1hypoxia96MediumWhich of the following is a condition when more CO2 accumulates in the bloodhypoxiaasphyxiationdeoxidationnone2asphyxiation