Question 1

Heme prosthetic groups are involved in electron transfer with quinones.

Accepted Answer

A) True 
 B)False

Question 2

Aseptic technique refers to

Accepted Answer

A)  the microbial inoculum placed into a test tube or onto a Petri plate. 
B)  the prevention of contamination. 
C)  cleanliness in the laboratory. 
D)  the autoclave and other sterilizing procedures. 
A)  the microbial inoculum placed into a test tube or onto a Petri plate. 
B)  the prevention of contamination. 
C)  cleanliness in the laboratory. 
D)  the autoclave and other sterilizing procedures.

Question 3

When writing half reactions,

Accepted Answer

A)  the units are in joules for OE0'. 
B)  the pH of the reaction should be described because it cannot be assumed to be 7.0. 
C)  the reduction potentials are by convention described in terms of oxidation. 
D)  the final product(s) must be atomically balanced with the beginning substrate(s). 
A)  the units are in joules for OE0'. 
B)  the pH of the reaction should be described because it cannot be assumed to be 7.0. 
C)  the reduction potentials are by convention described in terms of oxidation. 
D)  the final product(s) must be atomically balanced with the beginning substrate(s).

Question 4

NAD+/NADH are involved primarily in________ reactions, while NADP+/NADPH are involved in________ reactions.

Accepted Answer

A)  biosynthetic (anabolic) / energy- generating (catabolic) 
B)  energy- generating (catabolic) / both energy- generating (catabolic) and biosynthetic (anabolic) 
C)  energy- generating (catabolic) / biosynthetic (anabolic) 
D)  both energy- generating (catabolic) and biosynthetic (anabolic) / both energy- generating (catabolic) and biosynthetic (anabolic) 
A)  biosynthetic (anabolic) / energy- generating (catabolic) 
B)  energy- generating (catabolic) / both energy- generating (catabolic) and biosynthetic (anabolic) 
C)  energy- generating (catabolic) / biosynthetic (anabolic) 
D)  both energy- generating (catabolic) and biosynthetic (anabolic) / both energy- generating (catabolic) and biosynthetic (anabolic)

Question 5

In a given chemical reaction, if the free energy of formation is known for each of the reactants and each of the products, the change in free energy can be calculated for the reaction.

Accepted Answer

A) True 
 B)False

Question 6

Feedback inhibition or covalent modification is generally sufficient for the regulation of gene expression.

Accepted Answer

A) True 
 B)False

Question 7

The enzyme that catalyzes the conversion of the proton motive force into ATP is , a molecule that contains two major parts, _________ and _________. This reaction is known as________ .

Accepted Answer

ATP synthase (ATPase

Question 8

Which statement is TRUE?

Accepted Answer

A)  Coenzymes bind tightly to their respective enzymes. 
B)  Coenzymes and prosthetic groups are technically not bound to their respective enzymes. 
C)  Coenzymes and prosthetic groups both bind tightly to their respective enzymes. 
D)  Prosthetic groups bind tightly to their respective enzymes. 
A)  Coenzymes bind tightly to their respective enzymes. 
B)  Coenzymes and prosthetic groups are technically not bound to their respective enzymes. 
C)  Coenzymes and prosthetic groups both bind tightly to their respective enzymes. 
D)  Prosthetic groups bind tightly to their respective enzymes.

Question 9

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 10

The citric acid cycle

Accepted Answer

A)  produces NADH as it progresses. 
B)  delineates the oxidation of pyruvate. 
C)  allows for the complete oxidation of glucose. 
D)  does all of the above. 
A)  produces NADH as it progresses. 
B)  delineates the oxidation of pyruvate. 
C)  allows for the complete oxidation of glucose. 
D)  does all of the above.

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

Which of the following groups is NOT membrane associated?

Accepted Answer

A)  cytochromes 
B)  NADH dehydrogenases 
C)  flavoproteins 
D)  All of these are membrane associated. 
A)  cytochromes 
B)  NADH dehydrogenases 
C)  flavoproteins 
D)  All of these are membrane associated.

Question 13

During the electron transport process, protons and electrons become physically separated in the cell membrane.

Accepted Answer

A) True 
 B)False

Question 14

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 15

Chemolithotrophs are

Accepted Answer

A)  heterotrophs. 
B)  phototrophs. 
C)  autotrophs. 
D)  organotrophs. 
A)  heterotrophs. 
B)  phototrophs. 
C)  autotrophs. 
D)  organotrophs.

Question 16

Most microorganisms have the same general nutritional requirements, so most microorganisms can grow on the same media.

Accepted Answer

A) True 
 B)False

Question 17

Amino acids can be grouped into structurally related families that have similar biosynthetic steps.

Accepted Answer

A) True 
 B)False

Question 18

Polysaccharides are key cell wall constituents.

Accepted Answer

A) True 
 B)False

Question 19

An enriched medium is a complex medium to which additional nutrients, such as_________ or________ , are added.

Accepted Answer

any two: beef extrac

Question 20

Vitamins are NOT considered growth factors.

Accepted Answer

A) True 
 B)False

Exam 4: Nutrition, Culture, and Metabolism of Microorganisms

Heme prosthetic groups are involved in electron transfer with quinones.

Aseptic technique refers to

When writing half reactions,

NAD+/NADH are involved primarily in________ reactions, while NADP+/NADPH are involved in________ reactions.

In a given chemical reaction, if the free energy of formation is known for each of the reactants and each of the products, the change in free energy can be calculated for the reaction.

Feedback inhibition or covalent modification is generally sufficient for the regulation of gene expression.

The enzyme that catalyzes the conversion of the proton motive force into ATP is , a molecule that contains two major parts, _________ and _________. This reaction is known as________ .

Which statement is TRUE?

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

The citric acid cycle

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

Which of the following groups is NOT membrane associated?

During the electron transport process, protons and electrons become physically separated in the cell membrane.

The net gain of ATP per molecule of glucose fermented is

Chemolithotrophs are

Most microorganisms have the same general nutritional requirements, so most microorganisms can grow on the same media.

Amino acids can be grouped into structurally related families that have similar biosynthetic steps.

Polysaccharides are key cell wall constituents.

An enriched medium is a complex medium to which additional nutrients, such as_________ or________ , are added.

Vitamins are NOT considered growth factors.

Microorganisms and Microbiology

A Brief Journey to the Microbial World

Cell Structure and Function in Bacteria and Archaea

Microbial Growth

Molecular Biology of Bacteria

Archael and Eukaryotic Molecular Biology

Regulation of Gene Expression

Viruses and Virology

Genetics of Bacteria and Arachaea

Genetic Engineering

Microbial Genomics

Phototrophy, Chemolithotrophy, and Major Biosyntheses

Catabolism of Organic Compounds

Commercial Products and Biotechnology

Microbial Evolution and Systematics

Bacteria: the Proteobacteria

Other Bacteria

Archaea

Eukaryotic Cell Biology and Eukaryotic Microorganisms

Viral Diversity

Methods in Microbial Ecology

Major Microbial Habitats and Diversity

Nutrient Cycles, Biodegradation, and Bioremediation

Microbial Symbioses

Microbial Growth Control

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology and Immunology

Epidemiology

Person-To-Person Microbial Diseases

Vectorborne and Soilborne Microbial Pathogens

Wastewater Treatment, Water Purification, and Waterborne Microbial Diseases

Food Preservation and Foodborne Microbial Diseases

Filters

NAD+/NADH are involved primarily in reactions, while NADP+/NADPH are involved in reactions.

The enzyme that catalyzes the conversion of the proton motive force into ATP is , a molecule that contains two major parts, _____ and _. This reaction is known as____ .

An enriched medium is a complex medium to which additional nutrients, such as_ or , are added.