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Micro Practice Chapter 5 Test Quiz
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Multiple Choice Questions
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1) Reactions that are both catabolic and anabolic are amphibolic.
0%
A
0%
neither anabolic nor catabolic.
0%
anabolic.
0%
B
12) A(n) __________ is a collection of pigments such as chlorophyll that are used to absorb light in the light-dependent reactions of photosynthesis.
0%
Answer: acids
0%
Answer: allosteric
0%
Answer: pyruvic
0%
Answer: photosystem
8) The purpose of electron transport is to create a proton __________ across a membrane that can then be used to make ATP.
0%
Answer: acceptor
0%
Answer: gradient
0%
Answer: acids
0%
Answer: transaminases
9) Anaerobic respiration involves the use of molecules other than oxygen as the final electron __________ in an electron transport chain.
0%
Answer: anoxygenic
0%
Answer: acceptor
0%
Answer: allosteric
0%
Answer: stroma
10) Laboratory fermentation tests often include a pH indicator because many bacteria produce __________ as they ferment carbohydrates.
0%
Answer: ADP
0%
Answer: stroma
0%
Answer: acids
0%
decarboxylation
6) During chemiosmosis, electrons are pumped across a membrane to produce ATP.
0%
A
0%
Answer: stroma
0%
B
0%
production of ATP and NADPH
4) The __________ point of an enzyme is reached when all active sites have bound substrate molecules.
0%
Answer: saturation
0%
Answer: gradient
0%
Answer: reduction
0%
Answer: hydrogen
15) During electron transport in chloroplast thylakoids, protons are pumped outside the thylakoid into a space called the __________.
0%
Answer: pyruvic
0%
Answer: acceptor
0%
Answer: gradient
0%
Answer: stroma
11) The __________ generate amino acids from carbohydrate precursors and glutamic acid.
0%
Answer: saturation
0%
Answer: reduction
0%
Answer: photosystem
0%
Answer: transaminases
2) NAD+ and NADP+ are important examples of both coenzymes and electron carriers.
0%
B
0%
anabolic
0%
RuBP
0%
A
14) Enzymes increase the rate of reaction by lowering the __________ energy.
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Answer: enzyme
0%
Answer: activation
0%
Answer: acceptor
0%
Answer: anoxygenic
13) Waste products such as sulfur are produced by __________ photosynthetic bacteria as they obtain electrons for noncyclic photophosphorylation. `
0%
Answer: allosteric
0%
Answer: photosystem
0%
Answer: anoxygenic
0%
Answer: acceptor
2) Another term for an organic catalyst is a(n) __________.
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energy-investment
0%
Answer: acceptor
0%
Answer: enzyme
0%
gluconeogenesis.
7) Electrons are transferred in the Krebs cycle in the form of __________ atoms to NAD+ and FAD.
0%
Answer: activation
0%
Answer: stroma
0%
Answer: acids
0%
Answer: hydrogen
5) When a noncompetitive inhibitor molecule binds to a(n) __________ site on an enzyme, the shape of the active site changes so that the substrate molecules can no longer bind.
0%
Answer: allosteric
0%
Answer: pyruvic
0%
Answer: acceptor
0%
Answer: photosystem
1) ATP is produced by the phosphorylation of __________.
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Answer: reduction
0%
Answer: acids
0%
Answer: ADP
0%
Answer: enzyme
6) During glycolysis, glucose is converted to __________ acid, a molecule that can be used in either fermentation or respiration pathways.
0%
Answer: stroma
0%
Answer: pyruvic
0%
Answer: reduction
0%
Answer: acceptor
9) Essential amino acids are amino acids that cannot be synthesized by an organism and so must be provided as nutrients.
0%
Answer: hydrogen
0%
B
0%
A
0%
amphibolic.
3) Environmental changes can result in the inactivation of enzymes.
0%
B
0%
catabolic
0%
anabolic
0%
A
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