Download BIOL 1000 Test 2 - Auburn University

BIOL 1000 Test 2 – 12:30 – Fall 08
1. Plasmolysis occurs because:
A. the solution outside a plant cell is hypotonic
B. the solution inside a plant cell is isotonic
C. the solution inside a plant cell is hypotonic
D. the solution outside a plant cell is isotonic
2. Which of the following is true of exergonic reactions?
A. the reactants have more energy than the products
B. do not take place in animals
C. the products have more energy that the reactants
D. none of the above
3. The second law of thermodynamics says that the amount of
universe in continually increasing.
A. usable energy
B. disorder
C. oxygen
D. total energy
in the
4. Substrates:
A. increase the energy levels of enzymes
B. are altered during the chemical reaction
C. lower the amount of energy required for a reaction to take place
D all of the above
Chymotrypsin regulates a reaction in which protein is broken down into amino acids.
5. The protein is a/an:
A. enzyme
B. product
C. substrate
D. inhibitor
6. Chymotrypsin is a/an:
A. enzyme
B. product
C. substrate
D. inhibitor
7. The protein would bind to chymotrypsin at the:
A. inhibitor
B. polar site
C. active site
D. activation locus
8. Water can come into animal cells until they burst, because animal cells:
A. don’t have a central vacuole
B. don't have lysosomes
C. don't have a cell wall
D. don't have mitochondria
9. (T or F) The second law of thermodynamics states that the total amount of energy in
the universe is continually decreasing.
10. When you refer to your metabolism, you are actually talking about the:
A. speed that food moves through your digestive system
B. quantity of enzymes produced in your pancreas
C. sum of all chemical reactions in your body
D. rate at which food is broken down in the stomach
A bag (made of selectively permeable material) that contains a 5% solution is dropped
into a beaker that contains pure water.
11. The bag will:
A. gain weight
C. stay the same weight
B. lose weight
D. explode
12. The solution in the beaker is:
A. isotonic
B. hypertonic
C. hypotonic
D. supertonic
13 (T or F) Water in the beaker will move up (against) a concentration gradient.
14. Plants wilt because:
A. they lose their turgour pressure
B. their cell membrane collapses
C. they are no longer able to bring in oxygen
D. they lack adequate amounts of chlorophyll
15. Where do the light dependent reactions take place?
A. the cytosol
B. the stroma
C. the thykaloid
D. the mitochondria
16. Pepsin is unusual for an enzyme because:
A. it works at a neutral pH
B. it works at a basic pH
C. it works at an acidic pH
D. it is produced by the spleen
17. FADH2 is produced in which of the following stages?
A. the Calvin cycle
B. the ETC
C. the Krebs cycle
D. glycolyis
18. The FADH2 that is produced will then be used in which stage?
A. Calvin cycle
B. the ETC
C. the prep reactions
D. glycolysis
19. Where in the cell does the Calvin cycle take place?
A. the mitochondria
B. the stroma
C. the thykaloid
D. the lysosome
20. In the ETC, the movement of what type of ions provides energy to change ADP into
ATP?
A. nitrogen
B. oxygen
C. hydrogen
D. water
21. In the above reaction (in question #20), this is an example of a
reaction.
A. endergonic
B. exergonic
C. hydrolysis
D. all of the above
22. Where does the NADPH used in the Calvin Cycle come from?
A. glycolysis
B. in the Krebs cycle
C. the light dependent reactions
D. the ETC
23. Every time you take a breath, you are breathing oxygen that came from the:
A. Calvin cycle
B. light dependent reactions
C. Krebs cycle
D. glycolysis
24. Which of the following is produced in anaerobic respiration?
A. ATP
B. lactic acid
C. alcohol
D. all of the above
25. Which of the following are you most likely to use aerobic respiration for?
A. running a sprint
B. sitting at your desk, writing
C. lifting a heavy weight D. none of the above, humans don't use aerobic respiration
26. What function does oxygen perform in respiration?
A. provides energy in glycolysis
B. donates hydrogens in the Krebs cycle
C. pulls spent electrons from the electron transport chain
D. reduces NADH
27. How does photorespiration differ from photosynthesis?
A. photorespiration does not take place in the leaf
B. no glucose is produced in photorespiration
C. no oxygen is produced in photosynthesis
D. all of the above
28. Water is split in which of the following stages?
A. the ETC
B. the Krebs cycle
C. glycolysis
D. the light dependent reactions
29. (T or F) Chlorophyll absorbs green wavelengths of light.
30. These two substances are produced in respiration, and then consumed in
photosynthesis:
A. carbon dioxide and water
B. ATP and NADH
C. NADPH and ATP
D. oxygen and glucose
31. How are C4 plants different from C3 plants?
A. only C3 plants produce glucose
B. C4 plants do not undergo the Calvin cycle
C. they use different electron carriers
D. C4 plants have an enzyme that will only bind with CO2
32. Where in the ETC do the electrons come from that move through the chain?
A. ATP
B. NADH and FADH2
C. CO2
D. water
33. When NAD+ is converted into NADH, this is an example of:
A. reduction
B. oxidation
C. dehydration synthesis
D. ionic bonding
34. Which of the following produces ATP?
A. the ETC
B. the Krebs cycle
C. the light dependent reactions
D. all of the above
35. When the stomata are closed:
A. water can't escape the leaf
B. carbon dioxide can't come into the leaf
C. oxygen can't escape the leaf
D. all of the above
36. Which of the following provides the energy to make ATP and NADPH in
photosynthesis?
B. oxygen
A. CO2
C. NADH
D. sunlight
37. Which of the following is consumed in the Calvin cycle?
A. FADH2
B. CO2
C. Oxygen
D. glucose
38. Which of the following is consumed (taken in) in the light dependent reactions?
A. water
B. NADPH
C. ATP
D. glucose
39. When a substance moves down a concentration gradient across a membrane, then it is
moving through:
A. a passive transport protein
B. an active transport protein
C. an receptor protein
D. all of the above
40. (T or T) One way to really freak out the opposing fans, pass out a few tons of carrots
before the next home game– cause nothing says "All Auburn, All Orange" like weird
looking folks with crazy orange skin!