Question 1

Which of the following statements properly characterizes the ATP yield from anaerobic respiration?

Accepted Answer

A)  Anaerobic respiration produces less ATP per glucose molecule than aerobic respiration at maximum net yield. 
B)  Anaerobic respiration at maximum net yield produces more ATP per glucose molecule than fermentation. 
C)  Anaerobic respiration produces 2-36 ATPs per glucose molecule. 
D)  All of the choices are correct. 
A)  Anaerobic respiration produces less ATP per glucose molecule than aerobic respiration at maximum net yield. 
B)  Anaerobic respiration at maximum net yield produces more ATP per glucose molecule than fermentation. 
C)  Anaerobic respiration produces 2-36 ATPs per glucose molecule. 
D)  All of the choices are correct. D

Question 2

In addition to electrons, which of the following can also be transferred, exchanging energy in the process?

Accepted Answer

A)  ADP 
B)  Glucose 
C)  Carbon 
D)  Hydrogen 
E)  Carbon dioxide 
A)  ADP 
B)  Glucose 
C)  Carbon 
D)  Hydrogen 
E)  Carbon dioxide D

Question 3

ATP is composed of deoxyribose, adenine, and three phosphate groups.

Accepted Answer

A) True 
 B)False  False

Question 4

How many carbon dioxide molecules are produced by the complete aerobic breakdown of one glucose molecule?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 5

Which of the following is not involved in the step that occurs between glycolysis and the Krebs cycle?

Accepted Answer

A)  NADH is formed 
B)  CO2 is released 
C)  Coenzyme A attaches to an acetyl group 
D)  Pyruvic acid accepts electrons from NADH 
A)  NADH is formed 
B)  CO2 is released 
C)  Coenzyme A attaches to an acetyl group 
D)  Pyruvic acid accepts electrons from NADH

Question 6

A holoenzyme is a combination of a protein and one or more substances called ________.

Accepted Answer

A)  substrates 
B)  apoenzymes 
C)  catalysts 
D)  cofactors 
E)  reactants 
A)  substrates 
B)  apoenzymes 
C)  catalysts 
D)  cofactors 
E)  reactants

Question 7

Fatty acids can be converted to acetyl-CoA for entering the Krebs cycle by the process of ________.

Accepted Answer

A)  amination 
B)  deamination 
C)  phosphorylation 
D)  beta oxidation 
E)  gluconeogenesis 
A)  amination 
B)  deamination 
C)  phosphorylation 
D)  beta oxidation 
E)  gluconeogenesis

Question 8

During aerobic cellular respiration, the final electron acceptor is ________.

Accepted Answer

A)  pyruvic acid 
B)  oxygen 
C)  nitrate 
D)  cytochrome c 
E)  FAD 
A)  pyruvic acid 
B)  oxygen 
C)  nitrate 
D)  cytochrome c 
E)  FAD

Question 9

Microbes can utilize only carbohydrates for energy production.

Accepted Answer

A) True 
 B)False

Question 10

Each FADH2 from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s).

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 11

Anabolic pathways are associated with a net gain of ATP, whereas catabolic pathways, for example, glycolysis, are associated with a net ATP breakdown.

Accepted Answer

A) True 
 B)False

Question 12

FAD, NAD, and coenzyme A are all ________ carriers.

Accepted Answer

A)  hydrogen 
B)  electron 
C)  ATP 
D)  hydrogen and electron 
E)  None of the choices are correct. 
A)  hydrogen 
B)  electron 
C)  ATP 
D)  hydrogen and electron 
E)  None of the choices are correct.

Question 13

The cell's metabolic reactions involve the participation of ________ that lower the activation energy needed for the initiation of a reaction.

Accepted Answer

A)  cofactors 
B)  vitamins 
C)  enzymes 
D)  ATP 
E)  coenzymes 
A)  cofactors 
B)  vitamins 
C)  enzymes 
D)  ATP 
E)  coenzymes

Question 14

All aerobic bacterial species have identical electron acceptors in their electron transport systems.

Accepted Answer

A) True 
 B)False

Question 15

NADH and FADH2 molecules are oxidized in which step of the aerobic respiration process?

Accepted Answer

A)  Electron transport system 
B)  Krebs cycle 
C)  Glycolysis 
D)  Preparation for Krebs cycle 
A)  Electron transport system 
B)  Krebs cycle 
C)  Glycolysis 
D)  Preparation for Krebs cycle

Question 16

The principal sites of amphibolic interaction occur during ________.

Accepted Answer

A)  glycolysis and photosynthesis 
B)  the Krebs cycle and electron transport system 
C)  glycolysis and the Krebs cycle 
D)  fermentation and the Krebs cycle 
E)  fermentation and glycolysis 
A)  glycolysis and photosynthesis 
B)  the Krebs cycle and electron transport system 
C)  glycolysis and the Krebs cycle 
D)  fermentation and the Krebs cycle 
E)  fermentation and glycolysis

Question 17

The RN is familiar with ATP production in bacterial and eukaryotic cells. How many ATP per glucose molecule would aerobic respiration yield in the patient's cells?

Accepted Answer

A)  2 ATP 
B)  36 ATPs 
C)  38 ATP 
D)  ATP yield is unpredictable. 
A)  2 ATP 
B)  36 ATPs 
C)  38 ATP 
D)  ATP yield is unpredictable.

Question 18

Intermediates in the glycolysis pathway feed into additional pathways that make amino acids and complex carbohydrates. These latter pathways are ________.

Accepted Answer

A)  biosynthetic and endergonic 
B)  hydrolytic and exergonic 
C)  biosynthetic and exergonic 
D)  hydrolytic and endergonic 
A)  biosynthetic and endergonic 
B)  hydrolytic and exergonic 
C)  biosynthetic and exergonic 
D)  hydrolytic and endergonic

Question 19

Oxygen-containing ions are used by some bacteria as final electron acceptors.

Accepted Answer

A) True 
 B)False

Question 20

Metabolic pathways that regenerate their starting point are called ________ pathways.

Accepted Answer

A)  linear 
B)  bidirectional 
C)  convergent 
D)  cyclic 
E)  divergent 
A)  linear 
B)  bidirectional 
C)  convergent 
D)  cyclic 
E)  divergent

Exam 7: Microbial Metabolism

Which of the following statements properly characterizes the ATP yield from anaerobic respiration?

In addition to electrons, which of the following can also be transferred, exchanging energy in the process?

ATP is composed of deoxyribose, adenine, and three phosphate groups.

How many carbon dioxide molecules are produced by the complete aerobic breakdown of one glucose molecule?

Which of the following is not involved in the step that occurs between glycolysis and the Krebs cycle?

A holoenzyme is a combination of a protein and one or more substances called ________.

Fatty acids can be converted to acetyl-CoA for entering the Krebs cycle by the process of ________.

During aerobic cellular respiration, the final electron acceptor is ________.

Microbes can utilize only carbohydrates for energy production.

Each FADH2 from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s).

Anabolic pathways are associated with a net gain of ATP, whereas catabolic pathways, for example, glycolysis, are associated with a net ATP breakdown.

FAD, NAD, and coenzyme A are all ________ carriers.

The cell's metabolic reactions involve the participation of ________ that lower the activation energy needed for the initiation of a reaction.

All aerobic bacterial species have identical electron acceptors in their electron transport systems.

NADH and FADH2 molecules are oxidized in which step of the aerobic respiration process?

The principal sites of amphibolic interaction occur during ________.

The RN is familiar with ATP production in bacterial and eukaryotic cells. How many ATP per glucose molecule would aerobic respiration yield in the patient's cells?

Intermediates in the glycolysis pathway feed into additional pathways that make amino acids and complex carbohydrates. These latter pathways are ________.

Oxygen-containing ions are used by some bacteria as final electron acceptors.

Metabolic pathways that regenerate their starting point are called ________ pathways.

Introduction to Microbes and Their Building Blocks

Tools of the Laboratory: Methods for the Culturing and Microscopic Analysis of Microorganisms

Bacteria and Archaea

Eukaryotic Cells and Microorganisms

Viral Structure and Multiplication

Microbial Nutrition and Growth

Microbial Genetics and Genetic Engineering

Physical and Chemical Control of Microbes

Antimicrobial Treatment

Interactions Between Microbes and Humans

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses Ii: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory Systems

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

One Health: the Interconnected Health of the Environment, Humans, and Other Animals

Filters

Each FADH₂ from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s).

NADH and FADH₂ molecules are oxidized in which step of the aerobic respiration process?