1 Name: KEY Last First ID#___________________________ Biology 11 – Drs. Barnosky and Quail Spring 2005 Midterm 1 DO NOT OPEN EXAM UNTIL INSTRUCTED TO DO SO Please Read the Instructions First Check your pages. There are 9 pages in this exam. You are responsible for making sure that you have all the pages. This examination is worth 100 points. Write your name and ID# on your scantron. Do not use a calculator. Multiple Choice Questions 1. Indicate your answers on the scantron sheet using a number 2 or test scoring pencil. Press heavily, don’t stray out of the margins, and completely erase any changed answers. 2. If you think that a multiple choice question is ambiguous or confusing, use the “gripe sheet” at the end of the examination to explain the problem. 3. There are 20 multiple choice or true/false questions worth 3 points each (60 points total). Fill–in and Short-Answer Questions 1. Use pen only (no grade corrections for pencil or white-out). 2. Write only one answer per question. You can elaborate on an answer, but you will not be given any credit if you write two different answers to the question. 3. Spelling rules: _ credit for 2–3 letters wrong or transposed. No points will be given if the misspelling alters the meaning of the word. 4. There are 6 fill–in questions worth 40 points in total.
Transcript
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Name: KEY Last First
ID#___________________________
Biology 11 – Drs. Barnosky and QuailSpring 2005Midterm 1
DO NOT OPEN EXAM UNTIL INSTRUCTED TO DO SO
Please Read the Instructions FirstCheck your pages. There are 9 pages in this exam.
You are responsible for making sure that you have all the pages.This examination is worth 100 points.
Write your name and ID# on your scantron.Do not use a calculator.
Multiple Choice Questions1. Indicate your answers on the scantron sheet using a number 2 or test scoring pencil.
Press heavily, don’t stray out of the margins, and completely erase any changedanswers.
2. If you think that a multiple choice question is ambiguous or confusing, use the “gripesheet” at the end of the examination to explain the problem.
3. There are 20 multiple choice or true/false questions worth 3 points each (60 pointstotal).
Fill–in and Short-Answer Questions1. Use pen only (no grade corrections for pencil or white-out).
2. Write only one answer per question. You can elaborate on an answer, but you willnot be given any credit if you write two different answers to the question.
3. Spelling rules: _ credit for 2–3 letters wrong or transposed. No points will be given ifthe misspelling alters the meaning of the word.
4. There are 6 fill–in questions worth 40 points in total.
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Choose the one best answer:
1. Which of the following is a FALSE statement?
A. The biosphere includes communities and their interaction with the physicalenvironment.
B. Cells are found within organelles.C. Species consist of many populations.D. The cell is the smallest unit retaining characteristics of life.E. None of the above.
2. Which is not part of the Linnaean classification system?
A. Binomial nomenclatureB. Hierachical classificationC. SynapomorphyD. PhylumE. Primates
3. Which of the following is not one of the Linnaean Kingdoms?
A. PlantaeB. FungiC. EubacteriaD. EukaryotaE. Protista
4. Which of the following definitions best describe evolution?
A. Systematically organized knowledge applicable in a relatively wide variety ofcircumstances, especially a system of assumptions, accepted principles,andrules of procedure devised to analyze, predict, or otherwise explain the nature orbehavior of a specified set of phenomena.
B. Abstract reasoning, speculationC. An assumption based on limited information or knowledgeD. A conjectureE. Both B and C
5. Water is NOT:
A. nonpolar [TRUE-IT IS POLAR]B. a molecule [FALSE – IT IS A MOLECULE]C. an element [TRUE – IT IS NOT AN ELEMENT]D. organic [TRUE – IT IS NOT ORGANIC]E. both C and D [REAL ANSWER IS ALL BUT B]
GIVE CREDIT FOR A, C, D, E
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6. Which of the following is false?
Hydrogen bonds:A. help control the shape of DNA moleculesB. occur because an electron-negative atom is attracted to a hydrogen atomC. are weak but very important in stabilizing molecular structuresD. are much stronger than covalent bondsE. help buffer against changes in temperature
7. In a two allele system where A is dominant to a, what are the chances of acurly–haired father (Aa) and a straight–haired mother (aa) producing a curly–hairedchild?
A. 25%B. 50%C. 66.66%D. 75%E. 100%
8. The Burgess Shale organisms
A. evolved in the high mountain environments of Canadian RockiesB. have evidence of the first cellular lifeC. are about 900 million years holdD. represent only extinct phylaE. represent most of the phyla that we still recognize today
9. When one gene influences more than one trait, as in Siamese cat eyes, voice, andcoat color, it is called
A. incomplete dominanceB. CodominanceC. epistasisD. environmental effectE. pleiotropy
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10.Which of the following is characterized by a carbon backbone, a ketone or aldehyde,and a -OH group?
A. ProteinB. DNAC. LipidD. CarbohydrateE. All of the above.
11.Here is the chemical equation for photosynthesis
What number should be inserted for the x subscripted on H on the right side of theequation?
A. 6B. 12C. 18D. 24E. None of the above
12.The difference between prokaryotic and eukaryotic cells is:
A. Only eukaryotic cells have DNAB. Only eukaryotic cells have organellesC. One of them lacks a cell membraneD. Both A and BE. Both B and C
13.True or False. Uracil is one of the nucleotides in DNA
A. TrueB. False
14.True or False. Enzymes raise activation energy.
A. TrueB. False
12H2O + 6CO2 6O2 + C6HxO6 + 6H20
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15. The difference between active transport and passive transport is:
A. Active transport is across a membrane; passive transport is not.B. Active transport requires an energy input; passive transport does not.C. Active transport takes place with a transport protein; passive transport does not.D. Active transport is by osmosis; passive transport is by diffusionE. Active transport moves bulk material; passive transport does not
16.The phylum whose individual organisms are most abundant is the:
A. PoriferaB. ArthropodaC. PlacazoaD. CnidariaE. Nematoda
17.A “jellyfish” (pictured below) is a member of what phylum?
A. PoriferaB. PlatyhelminthesC. PlacazoaD. CnidariaE. Nematoda
18.Which is NOT a feature of phylogenetic taxonomy?
A. emphasizing evolutionary relationshipsB. expressing how groups are related on cladogramsC. a hierarchical classification that fits organisms into kingdoms, phyla, classes,
orders, genera, and speciesD. Reliance on synapormorphiesE. None of the above
19.Which is NOT one of the major features of microevolution?
A. mutationB. speciationC. recombinationD. selectionE. genetic drift
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20.Which IS a characteristic of Porifera :
A. builds coral reefsB. marine predatorC. earliest complex life in the fossil recordD. silica spicules as a ‘skeletal’ structureF. both C and D
Short answer questions.
21.Arrange the following steps in the building of proteins in the correct order with thefirst step at the top and the last step at the bottom: Assembly of Amino Acids,Nucleotides, Assembly of Polypeptide Chains, Assembly of NucleotideSequences, Assembly of Nucleic Acids, (5 pts. – 1 point for each step)
22. Name the parts of the cell that are indicated by letters. Write the name by theappropriate letter here (5 points):
a. Vesicle_________________________
b. Mitochondrion_________________________
c. Golgi Body_________________________
d. Endoplasmic reticulum_________________________
e. Nucleus_________________________
a
bc
d
e
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23. Choose any one of the structures from question 22 and tell what its function is (3points).
Name of Organelle Function
Possible Answers:Nucleus: storage of DNA/chromosomesGolgi Body: packages proteins/lipidsVesicle: transports cell productsMitochondria: produces energy/ATPEndoplasmic reticulum: protein synthesisNo credit for ribosomes, cytoskeleton, flagella, or cilia since they don’t havemembranes and aren’t considered organelles. Cell membrane is not entirely withinthe cytoplasm of a cell and is therefore not considered an organelle.
24. Using the table below (12 points):• List the three stages in aerobic respiration in order, with the first stage at
the top and the last stage at the bottom• Tell what part of the cell the stage takes place in• Tell how much ATP is present at the beginning of the stage, and how
much at the end of the stageNAME THE STAGE WHERE IN CELL
DOES IT TAKEPLACE
HOW MUCH ATPIS PRESENTWHEN THE STAGEBEGINS
HOW MUCH ATPIS PRESENTWHEN THE STAGECONCLUDES
Glycolysis Cytoplasm 2 ATP 4 ATP
Krebs Cycle Mitochondrion 4 ATP 6 ATP
Electron TransportPhosphorylation
Inner membrane ofmitochondrion
6 ATP 36 ATP
I wasn't asking to really to explain the process and how much is produced and how each step of the way ...only what you start with, and what you end up with. If you are thinking about how much is actually producedat each step, it would be 2 ATP produced during glycolysis by substrate-level phosphorylation, 2 producedduring the Krebs Cycle by substrate-level phosphorylation, and 32 produced during ETP by electrontransport phosphorylation, with a net yield of 2+2+32=36. (see Figs. 7.5, 7.6, 7.7 in the text)
If the students gave an answer that accurately reflected what is actually produced at each step, it is ok to givethem full credit. In that case, the only difference would be in the numbers in the "How much is present whenthe stage begins". If the student was interpreting it as "How much is actually produced during the stage"[which is actually pretty different than how the question is worded], the right answers for that column wouldbe glycolysis=2, Krebs Cycle=2, ETP=32.
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25. Indicate which letter on the cladogram below corresponds to the following terms bywriting the letter next to the term (10 points, 1 point for each term):
e_____Multicelled a_____Porifera j_____Complete gut d_____Nematoda
