Question 1

Electron transport chain:

Accepted Answer

A) involves transfer of O₂ to electrons in the substrate 
B) results in a net consumption of ATP 
C) can be thought of as electrons acting as fish increasing in energy as they jump up a waterfall 
D) none of these 
A) involves transfer of O₂ to electrons in the substrate 
B) results in a net consumption of ATP 
C) can be thought of as electrons acting as fish increasing in energy as they jump up a waterfall 
D) none of these

Question 2

In fermentation reactions occurring in yeast to produce wine,two products of the reaction are __________ and _________.

Accepted Answer

A) acid; hydrogen gas 
B) hydrogen gas; propionic acid 
C) ethyl alcohol; methane 
D) carbon dioxide; ethyl alcohol 
A) acid; hydrogen gas 
B) hydrogen gas; propionic acid 
C) ethyl alcohol; methane 
D) carbon dioxide; ethyl alcohol

Question 3

As electrons are passed from carrier to carrier,their energy changes.At which point in the chain,would you expect the energy of the electrons to be the highest

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 4

All of the following are electron acceptors for anaerobic respiration,except:

Accepted Answer

A) carbon dioxide 
B) oxygen 
C) nitrate ions 
D) sulfate ions 
A) carbon dioxide 
B) oxygen 
C) nitrate ions 
D) sulfate ions

Question 5

Which statement is true about enzymes

Accepted Answer

A) Enzyme catalyzed reactions would not go forward without their specific enzymes. 
B) Most enzymes catalyze several different reactions. 
C) Coenzymes are organic molecules while cofactors are inorganic molecules. 
D) An apoenzyme is a holoenzyme that is missing its cofactor. 
A) Enzyme catalyzed reactions would not go forward without their specific enzymes. 
B) Most enzymes catalyze several different reactions. 
C) Coenzymes are organic molecules while cofactors are inorganic molecules. 
D) An apoenzyme is a holoenzyme that is missing its cofactor.

Question 6

The end product of glycolysis is:

Accepted Answer

A) fructose-1,6-diphosphate 
B) 1,3 diphosphoglyceric acid 
C) phosphoenolpyruvic acid 
D) pyruvic acid 
A) fructose-1,6-diphosphate 
B) 1,3 diphosphoglyceric acid 
C) phosphoenolpyruvic acid 
D) pyruvic acid

Question 7

Each acetyl-CoA molecule will eventually produce ________ in the Krebs cycle.

Accepted Answer

A) four pairs of electrons 
B) three molecules of NADH 
C) one molecule of GTP 
D) all of these choices 
A) four pairs of electrons 
B) three molecules of NADH 
C) one molecule of GTP 
D) all of these choices

Question 8

Which of the following is not a carrier molecule that carries hydrogen atoms or electrons in oxidative reactions

Accepted Answer

A) Cytochrome 
B) FAD 
C) Niacin 
D) NAD⁺ 
A) Cytochrome 
B) FAD 
C) Niacin 
D) NAD⁺

Question 9

The initial substrate molecule for the Krebs cycle is:

Accepted Answer

A) pyruvic acid 
B) acetyl-CoA 
C) acetic acid 
D) butanediol 
A) pyruvic acid 
B) acetyl-CoA 
C) acetic acid 
D) butanediol

Question 10

The electrons transferred from acetyl groups in the Krebs cycle are transferred to:

Accepted Answer

A) NAD⁺ only 
B) FAD only 
C) neither NAD⁺ and FAD 
D) both NAD⁺ and FAD 
A) NAD⁺ only 
B) FAD only 
C) neither NAD⁺ and FAD 
D) both NAD⁺ and FAD

Question 11

Which of the following is true about glycolysis

Accepted Answer

A) The net yield of ATP is two ATPs for each molecule of glucose. 
B) It provides cells with a relatively large amount of energy. 
C) Four molecules of ATP are used in the initial phosphorylation steps. 
D) The ATP that is used up during glycolysis is not considered in calculating the net yield of ATP. 
A) The net yield of ATP is two ATPs for each molecule of glucose. 
B) It provides cells with a relatively large amount of energy. 
C) Four molecules of ATP are used in the initial phosphorylation steps. 
D) The ATP that is used up during glycolysis is not considered in calculating the net yield of ATP.

Question 12

In photosynthesis,chemical energy is used to make organic molecules in the:

Accepted Answer

A) light reaction 
B) dark reaction 
C) hydrolytic reaction 
D) photophosphorylation reaction 
A) light reaction 
B) dark reaction 
C) hydrolytic reaction 
D) photophosphorylation reaction

Question 13

As electrons are passed from carrier to carrier,their energy changes.At which point in the chain,would you expect the energy of the electrons to be the lowest

Accepted Answer

A) A 
B) G 
C) C 
D) F 
E) E 
A) A 
B) G 
C) C 
D) F 
E) E

Electron transport chain:

In fermentation reactions occurring in yeast to produce wine,two products of the reaction are __ and _.

As electrons are passed from carrier to carrier,their energy changes.At which point in the chain,would you expect the energy of the electrons to be the highest

All of the following are electron acceptors for anaerobic respiration,except:

Which statement is true about enzymes

The end product of glycolysis is:

Each acetyl-CoA molecule will eventually produce ________ in the Krebs cycle.

Which of the following is not a carrier molecule that carries hydrogen atoms or electrons in oxidative reactions

The initial substrate molecule for the Krebs cycle is:

The electrons transferred from acetyl groups in the Krebs cycle are transferred to:

Which of the following is true about glycolysis

In photosynthesis,chemical energy is used to make organic molecules in the:

As electrons are passed from carrier to carrier,their energy changes.At which point in the chain,would you expect the energy of the electrons to be the lowest

Scope and History of Microbiology

The Microbiome

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: The Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Basic Principles of Adaptive Immunity and Immunization

Immune Disorders

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, Lymphatic, and Systemic Diseases

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

Filters

Exam 6: Essential Concepts of Metabolism

Electron transport chain:

In fermentation reactions occurring in yeast to produce wine,two products of the reaction are __________ and _________.

As electrons are passed from carrier to carrier,their energy changes.At which point in the chain,would you expect the energy of the electrons to be the highest

All of the following are electron acceptors for anaerobic respiration,except:

Which statement is true about enzymes

The end product of glycolysis is:

Each acetyl-CoA molecule will eventually produce ________ in the Krebs cycle.

Which of the following is not a carrier molecule that carries hydrogen atoms or electrons in oxidative reactions

The initial substrate molecule for the Krebs cycle is:

The electrons transferred from acetyl groups in the Krebs cycle are transferred to:

Which of the following is true about glycolysis

In photosynthesis,chemical energy is used to make organic molecules in the:

As electrons are passed from carrier to carrier,their energy changes.At which point in the chain,would you expect the energy of the electrons to be the lowest

Scope and History of Microbiology

The Microbiome

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: The Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Basic Principles of Adaptive Immunity and Immunization

Immune Disorders

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, Lymphatic, and Systemic Diseases

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

Filters

In fermentation reactions occurring in yeast to produce wine,two products of the reaction are __ and _.