Question 1

One example of an electron acceptor that can be used in anaerobic respiration is

Accepted Answer

A)  NADH. 
B)  water. 
C)  nitrate. 
D)  FMN. 
A)  NADH. 
B)  water. 
C)  nitrate. 
D)  FMN.

Question 2

The net result of electron transport is the generation of a pH gradient and an electrochemical potential across the membrane.

Accepted Answer

A) True 
 B)False

Question 3

If a substance is reduced,it gains electrons.

Accepted Answer

A) True 
 B)False

Question 4

In electron transport systems,the electron carriers are membrane associated.

Accepted Answer

A) True 
 B)False

Question 5

Discuss why energy yield in an organism undergoing anaerobic respiration is less than that of an organism undergoing aerobic respiration.

Accepted Answer

One possible explanation could point to

Question 6

Contrast fermentation and respiration in terms of electron donor,electron acceptor,type of ATP production,and relative number of ATP produced.

Accepted Answer

Respiration should be distinguished as u

Question 7

Which element functions BOTH as an enzyme cofactor and as a stabilizer of ribosomes and nucleic acids?

Accepted Answer

A)  iron 
B)  hydrogen 
C)  zinc 
D)  magnesium 
A)  iron 
B)  hydrogen 
C)  zinc 
D)  magnesium

Question 8

The Embden-Meyerhof-Parnas pathway is another name for

Accepted Answer

A)  the citric acid cycle. 
B)  glycolysis. 
C)  electron transport. 
D)  NADH production. 
A)  the citric acid cycle. 
B)  glycolysis. 
C)  electron transport. 
D)  NADH production.

Question 9

Heme prosthetic groups are involved in electron transfer with quinones.

Accepted Answer

A) True 
 B)False

Question 10

Most of the carbon in amino acid biosynthesis comes from

Accepted Answer

A)  citric acid cycle intermediates. 
B)  citric acid cycle intermediates and glycolysis products. 
C)  glycolysis products. 
D)  glycolysis intermediates and products. 
A)  citric acid cycle intermediates. 
B)  citric acid cycle intermediates and glycolysis products. 
C)  glycolysis products. 
D)  glycolysis intermediates and products.

Question 11

Free-energy calculations are dependent on the rates of the reactions.

Accepted Answer

A) True 
 B)False

Question 12

The net gain of ATP per molecule of glucose fermented is

Accepted Answer

A)  1. 
B)  2. 
C)  4. 
D)  8. 
A)  1. 
B)  2. 
C)  4. 
D)  8.

Question 13

Which is an example of a micronutrient?

Accepted Answer

A)  arginine 
B)  inorganic phosphorous 
C)  iron 
D)  vitamin B₁₂ 
A)  arginine 
B)  inorganic phosphorous 
C)  iron 
D)  vitamin B₁₂

Question 14

All microorganisms require

Accepted Answer

A)  carbon, iron, and sodium. 
B)  phosphorus, aluminum, and sodium. 
C)  calcium, potassium, and magnesium. 
D)  phosphorus, selenium, and sulfur. 
A)  carbon, iron, and sodium. 
B)  phosphorus, aluminum, and sodium. 
C)  calcium, potassium, and magnesium. 
D)  phosphorus, selenium, and sulfur.

Question 15

Regeneration of oxaloacetate is essential for the citric acid cycle to be cyclical.

Accepted Answer

A) True 
 B)False

Question 16

The portion of an enzyme to which substrates bind is referred to as the

Accepted Answer

A)  substrate complex. 
B)  active site. 
C)  catalytic site. 
D)  junction of van der Waals forces. 
A)  substrate complex. 
B)  active site. 
C)  catalytic site. 
D)  junction of van der Waals forces.

Question 17

Varied coenzyme availability increases the diversity of enzymatic reactions in both biosynthetic and catabolic pathways possible in a cell.

Accepted Answer

A) True 
 B)False

Question 18

A catalyst

Accepted Answer

A)  requires more reactants but makes the reaction rate faster. 
B)  increases the amount of reactants produced but does not change the rate. 
C)  changes the rate of the reaction but does not change the end amount of products. 
D)  changes both the rate of a reaction and the amount of the product that will be obtained as the reaction is completed. 
A)  requires more reactants but makes the reaction rate faster. 
B)  increases the amount of reactants produced but does not change the rate. 
C)  changes the rate of the reaction but does not change the end amount of products. 
D)  changes both the rate of a reaction and the amount of the product that will be obtained as the reaction is completed.

Question 19

Summarize the roles the proton motive force has in microbial metabolism.

Accepted Answer

The proton motive force uses a

Question 20

The energy released from the hydrolysis of coenzyme A is conserved in the synthesis of ATP.

Accepted Answer

A) True 
 B)False

Exam 3: Microbial Metabolism

One example of an electron acceptor that can be used in anaerobic respiration is

The net result of electron transport is the generation of a pH gradient and an electrochemical potential across the membrane.

If a substance is reduced,it gains electrons.

In electron transport systems,the electron carriers are membrane associated.

Discuss why energy yield in an organism undergoing anaerobic respiration is less than that of an organism undergoing aerobic respiration.

Contrast fermentation and respiration in terms of electron donor,electron acceptor,type of ATP production,and relative number of ATP produced.

Which element functions BOTH as an enzyme cofactor and as a stabilizer of ribosomes and nucleic acids?

The Embden-Meyerhof-Parnas pathway is another name for

Heme prosthetic groups are involved in electron transfer with quinones.

Most of the carbon in amino acid biosynthesis comes from

Free-energy calculations are dependent on the rates of the reactions.

The net gain of ATP per molecule of glucose fermented is

Which is an example of a micronutrient?

All microorganisms require

Regeneration of oxaloacetate is essential for the citric acid cycle to be cyclical.

The portion of an enzyme to which substrates bind is referred to as the

Varied coenzyme availability increases the diversity of enzymatic reactions in both biosynthetic and catabolic pathways possible in a cell.

A catalyst

Summarize the roles the proton motive force has in microbial metabolism.

The energy released from the hydrolysis of coenzyme A is conserved in the synthesis of ATP.

Microorganisms and Microbiology

Microbial Cell Structure and Function

Molecular Biology

Microbial Growth and Control

Microbial Genomics

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetics of Bacteria and Archaea

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology

Epidemiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

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