4551 SMJK PHOR TAY PEPERIKSAAN PERTENGAHAN TAHUN 2014 Tingkatan 4 BIOLOGY Masa: 2½ Jam Name: _________________________________ ( ) Class: ______________ Section A: Answer all the questions 1 The following information refers to organelle P. What is organelle P? A Ribosome B Golgi apparatus C Smooth endoplasmic reticulum D Rough endoplasmic reticulum 2 The tissue that lines the internal organs is the A Nerve tissue B Epithelial tissue C Connective tissue D Muscle tissue 3 Diagram 1 shows a type of fresh water unicellular organism. Diagram 1 What structure will help to maintain the osmotic concentration of the body? A K B L C M D N 4 Diagram 2 shows a type of plant tissue. Diagram 2 What is the function of this tissue? 1 Found abundantly in the liver cells Important in the synthesis of
Transcript
4551 SMJK PHOR TAYPEPERIKSAAN PERTENGAHAN TAHUN 2014
Section A:Answer all the questions 1 The following information refers to
organelle P.
What is organelle P?A RibosomeB Golgi apparatusC Smooth endoplasmic reticulumD Rough endoplasmic reticulum
2 The tissue that lines the internal organs is theA Nerve tissueB Epithelial tissueC Connective tissueD Muscle tissue
3 Diagram 1 shows a type of fresh water unicellular organism.
Diagram 1What structure will help to maintain the osmotic concentration of the body?A KB LC MD N
4 Diagram 2 shows a type of plant tissue.
Diagram 2What is the function of this tissue?A Involved in reproductionB Transport water and mineral saltsC Translocation of organic
substancesD Provides support and mechanical
strength
5 Diagram 3 shows the structure of plasma membrane.
Diagram 3Which labelled structures determine the selective permeability of the plasma membrane?A P and QB Q and SC P and RD R and S
1
Found abundantly in the liver cells
Important in the synthesis of phospholipids and steroids
6 Diagram 4 shows a potato that has been set up for several hours.
Diagram 4Which of the following occurs after several hours?A The concentration of salt solution
decreasesB The volume of salt solution
decreasesC The water level in the beaker
increasesD All of the potato cells have
undergone deplasmolysis
7 Diagram 5 shows gaseous exchange in an alveolus.
Diagram 5Which of the following processes is involved in the gaseous exchange?A OsmosisB Simple diffusionC Facilitated diffusionD Active transport
8 Diagram 6 shows the level of 20% sucrose solution in the capillary tube at the beginning of the experiment.
Diagram 6Which of the following graph shows the level of sucrose solution in the capillary tube during the experiment?
A C
B D
9 Diagram 7 shows a cell which has been put into a particular solution.
Diagram 7What is experienced by the cell?A CrenationB HaemolysisC PlasmolysisD Deplasmolysis
2
10 The statements below are about a trace element.
A IronB SodiumC CalciumD Magnesium
11 The equation shows process X in the formation of disaccharides.
Process XGlucose+ Glucose Maltose+ water
What is process X?A HydrolysisB CondensationC ReductionD Evaporation
12 Diagram 8 shows the mechanism of enzyme action.
Diagram 8P is needed by the enzyme to function. What is P?A CofactorB ProductC InhibitorD Substrate
13 Diagram 9 shows the rate of an enzyme-catalysed reaction.
Diagram 9Why is the rate of reaction constant at high substrate concentration?A The reaction has stoppedB The enzymes are denaturedC The products of reaction inhibit
the reactionD The enzyme concentration
becomes a limiting factor
14 Which of these substrates is not match correctly with its uses?
Enzymes UsesA Lactase Solidifies milk
proteinB Lipase Ripen cheeseC Glucose
isomeraseConverts glucose to fructose
D Protease Removes the skin of fish
15 Which level of protein organisation refers to haemoglobin?A C
B D
3
Trigger muscle contraction Cofactor of enzymes Component of bones
16 In plants, mitotic cell division occurs actively inI AntherII Root tipsIII Bud tipsIV Cambium layerA I, and II onlyB I, II and III onlyC I, II and IV onlyD II, III and IV only
17 Diagram 10 shows a micrograph of an animal cell undergoing mitotic cell division.
Diagram 10What is the stage of the mitotic cell division shown by the arrow?A MetaphaseB AnaphaseC TelophaseD Prophase
18 Diagram 11 shows a daughter cell which is produced through mitosis.
Diagram 11What is the chromosomal number of the parent cell?A 2B 4C 6D 8
19 Diagram 12 shows a cell cycle.
Diagram 12Which of the phases labeled A, B, C and D does the replication of DNA occur?
20 Diagram 13 shows the process of cloning a sheep.
Diagram 13Which of the following is the offspring Y?A
B
C
D
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Section B:Answer all the questions.1 All levels of organisation interact and work together to maintain the body’s health.
Diagram 1 shows four levels of cell organisation in humans.
(a) The cells undergo process X to grow, change shape and carry out specific functions. State process X...........................................................................................................................................
[1 mark]
(b) (i) Name the tissues in Level 2.....................................................................................................................................
[1 mark](ii) State two functions of the structure in Level 2. ..................................................................................................................................
[2 marks](iii) The structure in Level 4 is one of the body systems. Name this system. .................................................................................................................................
.
[1 mark](vi) State one function of the system in (b)(iii)
(c) Name the organelles that are found in large number in structure in Level 2. State the function of the organelle...........................................................................................................................................
[2 marks]
2 Diagram 2 shows a fluid mosaic model of plasma membrane.
Diagram 2(a) (i) Name the structure labelled P, Q, R and S
P : ..........................................................
(b) The plasma membrane is said to be semi-permeable. What is the meaning of semi-permeable membrane?.........................................................................................................................................
(c) State one example of substances that move across the plasma membrane through R. State the characteristic of that substance..........................................................................................................................................
(iii) Explain how the monomers are transported across the plasma membrane....................................................................................................................................
3 Diagram 3.1 shows a plant cell in normal condition, and two conditions of the plant cell when immersed in different concentrations of sucrose solutions
Diagram 3.1(a) Name the type of sucrose solution
Sucrose solution P : ................................................................................
(c) A chemical substance has inhibited the respiration process in the root hair cells of the plant.Explain the effect to the transport of mineral ions into the root hair cells.
(c) A farmer plans to produce a large number of bananas within a short period of time.(i) Suggest the best technique that can be employed by the farmer.
Section C:Answer all the questions.1. Diagram 6 shows an enzymatic reaction.
Diagram 6(a) Based on diagram 6,
(i) identify the substances labelled P, Q, R and S[4 marks]
(ii) explain the characteristics of an enzyme.[6 marks]
(b) Explain the production of extracellular enzymes in the specific organelles.[10 marks]
Section D:Answer all questions. 1 An experiment is carried out to investigate the effect of enzyme concentration on the rate
of enzyme reaction.
Table 1 shows the preparation of the amylase enzyme concentration and the volume of starch suspensions.
Test tube Volume of saliva (ml) Volume of distilled water (ml)
Volume of starch suspension (ml)
A 0.5 2.5 4B 1.0 2.0 4C 1.5 1.5 4D 2.0 1.0 4E 2.5 0.5 4F 3.0 0.0 4
Table 1
The following steps are carried out:Step 1:Step 2:Step 3:
All the test tubes are immersed in the water bath set at 37°C .2 drops of iodine solution are placed in each groove on a white tile.4 ml of 1% starch suspension is added to test tube A and the stopwatch is started immediately.
Step 4: Every one minute, a small amount of the mixture is removed from test tube A and tested with iodine solution on the tile.
Step 5: Record the time taken when the mixture no longer changes the colour of iodine based on figure 1.
Step 6: Steps 2-5 are repeated with the contents of test tube B, C, D, E and F.
Figure 1
Table 2 shows the iodine test result in test tubes A, B, C, D, E and F.
Test tube
Volume of saliva
(ml)Iodine test result
Time taken for the dark blue solution to
turn brownish (minutes)
A 0.5
.....................
B 1.0
......................
C 1.5
......................
D 2.0
.....................
E 2.5
......................
F 3.0
.....................
Table 2
(a) Record the time taken for the hydrolysis of starch in table 2.[3 marks]
(b) (i) State two different observations based on Table 2.Observation 1:
(e) (i) Construct a table and record all the data collected in this experiment.Your table should have the following titles: Test tube Enzyme concentration
Enzyme concentration = x100% The time taken for the dark blue solution to turn brownish Rate of enzyme reaction.
Rate of enzyme reaction = [3 marks]
(f) This experiment is repeated by adding 5 ml volume of saliva into test tube F.
1 Time
Predict the time taken for dark blue to turn brownish. Explain your answer..........................................................................................................................................
