Chapter 11 Catabolism: Energy Release and Conservation
1) The total of all chemical reactions occurring in a cell is called ________.
A) anabolism
B) catabolism
C) metabolism
D) None of the choices are correct.
Answer: C
Topic: Biochemistry
Bloom’s/Accessibility: 1. Remember / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.01c Discuss the metabolic flexibility of microorganisms
2) Although most metabolic reactions are freely reversible, a few irreversible catabolic steps are bypassed during biosynthesis with special enzymes that catalyze the reverse reaction in order to allow for independent regulation of catabolic and anabolic pathways.
Answer: TRUE
Topic: Biochemistry
Bloom’s/Accessibility: 2. Understand / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.01c Discuss the metabolic flexibility of microorganisms
3) Metabolic pathways can be either catabolic or anabolic but not both.
Answer: FALSE
Topic: Biochemistry
Bloom’s/Accessibility: 2. Understand / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.02c Propose an explanation that accounts for the existence of amphibolic pathways
4) ________ pathways are those that function both catabolically and anabolically.
Answer: Amphibolic
Topic: Biochemistry
Bloom’s/Accessibility: 1. Remember / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.02c Propose an explanation that accounts for the existence of amphibolic pathways
5) The catabolism of glucose begins with one or more of the glycolytic pathways that yield pyruvate.
Answer: TRUE
Topic: Aerobic/Anaerobic Respiration
Bloom’s/Accessibility: 2. Understand / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.03a Describe in general terms what happens to a molecule of glucose during aerobic respiration; 11.04a List the three major pathways that catabolize glucose to pyruvate
6) ________ ________ is a process that can completely catabolize an organic energy source to CO2 using the glycolytic pathways and TCA cycle with O2 as the terminal electron acceptor for an electron transport chain.
Answer: Aerobic respiration
Topic: Aerobic/Anaerobic Respiration
Bloom’s/Accessibility: 1. Remember / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.02b List the pathways of major importance to chemoorganotrophs and explain their importance; 11.03a Describe in general terms what happens to a molecule of glucose during aerobic respiration
7) Very few Gram-positive bacteria utilize the Entner-Doudoroff glycolytic pathway.
Answer: TRUE
Topic: Aerobic/Anaerobic Respiration
Bloom’s/Accessibility: 1. Remember / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.04c Diagram the major changes made to glucose as it is catabolized by the Embden-Meyerhof, Enter-Doudoroff, and pentose phosphate pathways
8) Some aerobic bacteria lack the Entner-Doudoroff and Embden-Meyerhoff pathways and instead use the pentose phosphate pathway for glycolysis.
Answer: FALSE
Topic: Aerobic/Anaerobic Respiration
Bloom’s/Accessibility: 2. Understand / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.04a List the three major pathways that catabolize glucose to pyruvate; 11.04g Draw a simple diagram that shows the connection between the Entner-Doudoroff pathway and the Embden-Meyerhof pathway and the connection between the pentose phosphate pathway and the Embden-Meyerhof pathway
9) An organism may use glycolysis and the pentose phosphate pathway simultaneously.
Answer: TRUE
Topic: Aerobic/Anaerobic Respiration
Bloom’s/Accessibility: 1. Remember / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.04f Summarize the function of the Embden-Meyerhof, Entner-Doudoroff, and pentose phosphate pathways
10) The net gain of ATP per molecule of glucose metabolized anaerobically via the Embden-Meyerhof pathway in prokaryotes is ________.
A) 2
B) 36
C) 38
D) 85
Answer: A
Topic: Aerobic/Anaerobic Respiration
Bloom’s/Accessibility: 1. Remember / Keyboard Navigation
ASM Topic: Module 03 Metabolic Pathways
ASM Objective: 03.03 The survival and growth of any microorganism in a given environment depends on its metabolic characteristics.
Learning Outcome: 11.04e Calculate the yields of ATP and NAD(P)H by the Embden-Meyerhof, Entner-Doudoroff, and pentose phosphate pathways
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