1. Chapter 5: Microbial Metabolism
Energy Production
Catabolic Reactions
Metabolic Pathways
Enzymes
Photosynthesis
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FINAL ROUND

2. Topic 1: Enzymes $100 Question
The enzyme-regulated energy-requiring
reactions are mostly involved in
catabolism.
anabolism.
photosynthesis.
oxidation.
Answer = B
ANSWER
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3. Topic 1: Enzymes $100 Answer
The enzyme-regulated energy-requiring
reactions are mostly involved in
catabolism.
anabolism.
photosynthesis.
oxidation.
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4. Topic 1: Enzymes $200 Question
In living cells, the enzyme-regulated chemical reactions that release energy are generally involved in
catabolism.
anabolism.
photosynthesis.
oxidation.
Answer = A
ANSWER
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5. Topic 1: Enzymes $200 Answer
In living cells, the enzyme-regulated chemical reactions that release energy are generally involved in
catabolism.
anabolism.
photosynthesis.
oxidation.
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6. Topic 1: Enzymes $300 Question
Denaturation of an enzyme involves breakage of
peptide bonds.
ionic bonds.
hydrogen bonds and other noncovalent bonds.
hydrogen bonds and peptide bonds.
Answer = C
ANSWER
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7. Topic 1: Enzymes $300 Answer
peptide bonds.
ionic bonds.
hydrogen bonds and other noncovalent bonds.
hydrogen bonds and peptide bonds.
Denaturation of an enzyme involves breakage of
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8. Topic 1: Enzymes $400 Question
lowering the energy of activation.
increasing the energy of activation.
increasing the frequency of collisions of the reactants.
decreasing the frequency of collisions of the reactants.
Enzymes increase the speed of a chemical
reaction by
Answer = A
ANSWER
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9. Topic 1: Enzymes $400 Answer
lowering the energy of activation.
increasing the energy of activation.
increasing the frequency of collisions of the reactants.
decreasing the frequency of collisions of the reactants.
Enzymes increase the speed of a chemical
reaction by
Answer = C
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10. Topic 1: Enzymes $500 Question
Apoenzymes are inactive by themselves and must be activated by
cofactors.
ATP.
holoenzymes.
substrates.
Answer = A
ANSWER
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11. Topic 1: Enzymes $500 Answer
Apoenzymes are inactive by themselves and must be activated by
cofactors.
ATP.
holoenzymes.
substrates.
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12. Topic 2: Energy Production $100 Question
What process does the electron transport chain perform?
glycolysis
substrate-level phosphorylation
photophosphorylation
oxidative phosphorylation
Answer = D
ANSWER
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13. Topic 2: Energy Production $100 Answer
What process does the electron transport chain perform?
glycolysis
substrate-level phosphorylation
photophosphorylation
oxidative phosphorylation
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14. Topic 2: Energy Production $200 Question
The addition of a phosphate to ADP is called
decarboxylation.
phosphorylation.
oxidative phosphorylation.
reduction.
Answer = B
ANSWER
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15. Topic 2: Energy Production $200 Answer
The addition of a phosphate to ADP is called
decarboxylation.
phosphorylation.
oxidative phosphorylation.
reduction.
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16. Topic 2: Energy Production $300 Question
is phosphorylated.
loses a hydrogen atom.
gains one or more electrons.
loses a hydrogen atom and gains one or more electrons.
A reduced molecule
Answer = C
ANSWER
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17. Topic 2: Energy Production $300 Answer
is phosphorylated.
loses a hydrogen atom.
gains one or more electrons.
loses a hydrogen atom and gains one or more electrons.
A reduced molecule
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18. Topic 2: Energy Production $400 Question
The energy from catabolic reactions is used to produce
ADP.
ATP.
AMP.
phosphate.
Answer = B
ANSWER
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19. Topic 2: Energy Production $400 Answer
The energy from catabolic reactions is used to produce
ADP.
ATP.
AMP.
phosphate.
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20. Topic 2: Energy Production $500 Question
In which of the following is chemical energy used for carbon fixation?
photosynthesis
Krebs cycle
fermentation
glycolysis
Answer = A
ANSWER
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21. Topic 2: Energy Production $500 Answer
In which of the following is chemical energy
used for carbon fixation?
photosynthesis
Krebs cycle
fermentation
glycolysis
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22. Topic 3: Catabolic Reactions $100 Question
What are the overall (net) products of glycolysis?
1 pyruvic acid, 4 ATP, 2 NADH
2 pyruvic acid, 2 ATP, 2 NADH
1 pyruvic acid, 2 ATP, 4 NADH
2 pyruvic acid, 4 ATP, 2 NADH
Answer = B
ANSWER
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23. Topic 3: Catabolic Reactions $100 Answer
What are the overall (net) products of
glycolysis?
1 pyruvic acid, 4 ATP, 2 NADH
2 pyruvic acid, 2 ATP, 2 NADH
1 pyruvic acid, 2 ATP, 4 NADH
2 pyruvic acid, 4 ATP, 2 NADH .
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24. Topic 3: Catabolic Reactions $200 Question
How many molecules of ATP can be generated from the three phases in the respiration of glucose in prokaryotes? 2 4 34 38
Answer = D
ANSWER
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25. Topic 3: Catabolic Reactions $200 Answer
How many molecules of ATP can be generated from the three phases in the
respiration of glucose in prokaryotes? 2 4 34 38
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26. Topic 3: Catabolic Reactions $300 Question
The pentose phosphate pathway provides a means to break down glucose and
five-carbon sugars.
six-carbon sugars.
lipids.
galactose.
Answer = A
ANSWER
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27. Topic 3: Catabolic Reactions $300 Answer
The pentose phosphate pathway provides a means to break down glucose and
five-carbon sugars.
six-carbon sugars.
lipids.
galactose.
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28. Topic 3: Catabolic Reactions $400 Question
The first step in the Krebs cycle is formation of
lactic acid.
pyruvic acid.
citric acid.
acetyl COA.
Answer = C
ANSWER
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29. Topic 3: Catabolic Reactions $400 Answer
The first step in the Krebs cycle is formation of
lactic acid.
pyruvic acid.
citric acid.
acetyl COA.
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30. Topic 3: Catabolic Reactions $500 Question
In aerobic respiration, what is the fate of the
pyruvic acid produced in glycolysis?
It is catabolized in glycolysis.
It is reduced to lactic acid.
It is oxidized in the Krebs cycle.
It is oxidized in the electron transport chain.
Answer = C
ANSWER
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31. Topic 3: Catabolic Reactions $500 Answer
In aerobic respiration, what is the fate of the
pyruvic acid produced in glycolysis?
It is catabolized in glycolysis.
It is reduced to lactic acid.
It is oxidized in the Krebs cycle.
It is oxidized in the electron transport chain.
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32. Topic 4: Photosynthesis $100 Question
Where does photosynthesis take place in
eukaryotic cells?
mitochondria
ribosomes
chloroplasts
lysosomes
Answer = C
ANSWER
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33. Topic 4: Photosynthesis $100 Answer
Where does photosynthesis take place in
eukaryotic cells?
mitochondria
ribosomes
chloroplasts
lysosomes
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34. Topic 4: Photosynthesis $200 Question
Photosynthesis takes place in
one stage.
two stages.
three stages.
four stages.
Answer = B
ANSWER
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35. Topic 4: Photosynthesis $200 Answer
Photosynthesis takes place in
one stage.
two stages.
three stages.
four stages.
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36. Topic 4: Photosynthesis $300 Question
In the Calvin-Benson cycle,
oxygen is used to synthesize sugars.
carbon dioxide is used to synthesize sugars.
ADP is formed.
light is required.
Answer = B
ANSWER
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37. Topic 4: Photosynthesis $300 Answer
In the Calvin-Benson cycle,
oxygen is used to synthesize sugars.
carbon dioxide is used to synthesize sugars.
ADP is formed.
light is required.
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38. Topic 4: Photosynthesis $400 Question
When water is oxidized by green plants, what is produced?
oxygen
carbon dioxide
sulfur granules
hydrogen sulfide
Answer = A
ANSWER
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39. Topic 4: Photosynthesis $400 Answer
When water is oxidized by green plants, what is produced?
oxygen
carbon dioxide
sulfur granules
hydrogen sulfide
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40. Topic 4: Photosynthesis $500 Question
In cyclic photophosphorylation, the electrons
return to chlorophyll.
are incorporated in NADPH.
are converted to ATP.
are converted to glucose.
Answer = A
ANSWER
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41. Topic 4: Photosynthesis $500 Answer
In cyclic photophosphorylation, the electrons
return to chlorophyll.
are incorporated in NADPH.
are converted to ATP.
are converted to glucose.
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42. Topic 5: Metabolic Pathways $100 Question
In order for bacteria to synthesize glycogen, a molecule of ATP is added to glucose 6-phosphate to form
uridine diphosphoglucose.
fructose 6-phosphate.
adenosine diphosphoglucose.
UDP-N-acetylglucosamine.
Answer = C
ANSWER
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43. Topic 5: Metabolic Pathways $100 Answer
In order for bacteria to synthesize glycogen, a molecule of ATP is added to glucose 6-phosphate to form
uridine diphosphoglucose.
fructose 6-phosphate.
adenosine diphosphoglucose.
UDP-N-acetylglucosamine.
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44. Topic 5: Metabolic Pathways $200 Question
Dihydroxyacetone phosphate, used to derive
glycerol, is taken from
the Krebs cycle.
glycolysis.
the electron transport chain.
the Calvin-Benson cycle.
Answer = B
ANSWER
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45. Topic 5: Metabolic Pathways $200 Answer
Dihydroxyacetone phosphate, used to derive
glycerol, is taken from
the Krebs cycle.
glycolysis.
the electron transport chain.
the Calvin-Benson cycle.
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46. Topic 5: Metabolic Pathways $300 Question
If an amine group comes from a preexisting amino acid, the process is called
beta-oxidation.
amination.
transamination.
beta-reduction.
Answer = C
ANSWER
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47. Topic 5: Metabolic Pathways $300 Answer
If an amine group comes from a preexisting amino acid, the process is called
beta-oxidation.
amination.
transamination.
beta-reduction.
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48. Topic 5: Metabolic Pathways $400 Question
pentose phosphate pathway; Entner-Doudoroff pathway
pentose phosphate pathway; the Krebs cycle
Entner-Doudoroff pathway; glycolysis
glycolysis; the Krebs cycle
The five-carbon sugars of nucleotides are derived from either the ______ or ______.
Answer = A
ANSWER
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49. Topic 5: Metabolic Pathways $400 Answer
pentose phosphate pathway; Entner-Doudoroff pathway
pentose phosphate pathway; the Krebs cycle
Entner-Doudoroff pathway; glycolysis
glycolysis; the Krebs cycle
The five-carbon sugars of nucleotides are
derived from either the ______ or ______.
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50. Topic 5: Metabolic Pathways $500 Question
Metabolic pathways that function in both
anabolism and catabolism are called _____
pathways.
anacatab
reversible
redox
amphibolic
Answer = D
ANSWER
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51. Topic 5: Metabolic Pathways $500 Answer
Metabolic pathways that function in both
anabolism and catabolism are called _____
pathways.
anacatab
reversible
redox
amphibolic
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52. FINAL ROUND Question
In glycolysis, for each molecule of glucose that is oxidized, there is a net gain of _____ molecules of ATP.
two
four
six
eight
Answer = A
ANSWER
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53. FINAL ROUND Answer
In glycolysis, for each molecule of glucose that is oxidized, there is a net gain of _____
molecules of ATP.
two
four
six
eight
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