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BIO SCI 93 MIDTERM 2
REVIEW QUESTIONS AND
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CORRECT DETAILED /
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VERIFIED ANSWERS LATEST
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UPDATE
,Which is the correct order for the hydrolysis of sucrose reaction?
1. (sucrase-sucrose-H2O)
2. (sucrase) + (sucrose) + (H2O)
3. (sucrase) + (glucose) + (fructose)
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A.) 3, 2, 1
B.) 1, 2, 3
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C.) 2, 3, 1
D.) 2, 1, 3 - ANS D.) 2, 1, 3
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The hydrolysis of sucrose is a _________________ reaction
A.) redox
B.) multimeric
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C.) exergonic
D.) endergonic - ANS C.) Exergonic
A competitive inhibitor usually blocks the access of the substrate to the active site of the
enzyme.
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A.) True
B.) False - ANS B.) False
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Energy coupling is a mechanism in which the cells use __________ to drive most
endergonic reactions.
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A.) NADH
B.) glucose
C.) ATP
D.) enzymes - ANS C.) ATP
Acidification of the intermembrane space of mitochondria will reduce the availability of
H+ for chemiosmosis
A.) True
, B.) False - ANS B.) False
Most CO2 from cellular respiration is released during:
A.) glycolysis
B.) electron transport
C.) lactic acid fermentation
D.) citric acid cycle - ANS D.) Citric acid cycle
Which of the following statements is CORRECT?
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A.) Chlorophyll is found in the stroma of the chloroplast.
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B.)When chlorophyll absorbs a photon of light, the energy may be released as a photon
of red light through a process known as fluorescence.
C.)Chlorophyll is abundant in all membranes of plant cells.
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D.)Chlorophyll is the only light-absorbing pigment found in plants.
E.) Plants are green because chlorophyll emits green light by fluorescence. - ANS B.)
When chlorophyll absorbs a photon of light, the energy may be released as a photon of
red light through a process known as fluorescence.
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Which of the following compounds are oxidized by the light reactions of photosynthesis?
A.) oxygen
B.) sugar (C6H12O6)
C.) NADP+
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D.) carbon dioxide and water
E.) water - ANS E.) Water
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Which of the following are trans-membrane complexes in photosynthetic electron
transport?
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A.) photosystem II, cytochrome complex, photosystem I
b.) plastoquinone (Pq), plastocyanin (Pc), ferredoxin (Fd)
C.) stroma, thylakoid lumen
D.) outer membrane, inner membrane, thylakoid membrane
E.) CO2, glyceraldehyde-3-phosphate, and sucrose - ANS A.) Photosystem II,
cytochrome complex, Photosystem I
You are a scientist trying to identify new ways to make animals glow different colors. As
part of your studies you identify a phosphorescent red strain of bacteria. You heat-killed