Question 1

When the product of reaction A becomes the reactant of reaction B, the metabolic pathway is

Accepted Answer

A) Linear 
B) Bi-directional 
C) Convergent 
D) Cyclic 
E) Divergent 
A) Linear 
B) Bi-directional 
C) Convergent 
D) Cyclic 
E) Divergent A

Question 2

Each of the following are denaturing agents except

Accepted Answer

A) High temperature 
B) Low temperature 
C) High pH 
D) Low pH 
E) All of the choices are correct 
A) High temperature 
B) Low temperature 
C) High pH 
D) Low pH 
E) All of the choices are correct B

Question 3

Each FADH2 from the Krebs cycle enters the electron transport system and gives rise to _____ ATP's.

Accepted Answer

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

Question 4

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Accepted Answer

A) True 
 B)False

Question 5

All of the chemical reactions of the cell are called

Accepted Answer

A) Catabolism 
B) Redox reactions 
C) Phosphorylation 
D) Metabolism 
E) Cellular respiration 
A) Catabolism 
B) Redox reactions 
C) Phosphorylation 
D) Metabolism 
E) Cellular respiration

Question 6

Enzymes that can function at boiling water temperatures or other harsh conditions would be termed

Accepted Answer

A) Denatured 
B) Ribozymes 
C) Abzymes 
D) Exoenzymes 
E) Extremozymes 
A) Denatured 
B) Ribozymes 
C) Abzymes 
D) Exoenzymes 
E) Extremozymes

Question 7

During which of the phases of cellular respiration is the majority of ATP formed?

Accepted Answer

A) Electron transport 
B) Krebs cycle 
C) Glycolysis 
D) Processing of pyruvic acid for the Krebs cycle 
E) All phases produce the same number of ATP molecules 
A) Electron transport 
B) Krebs cycle 
C) Glycolysis 
D) Processing of pyruvic acid for the Krebs cycle 
E) All phases produce the same number of ATP molecules

Question 8

Glycolysis

Accepted Answer

A) Uses 2 ATP, produces 2 ATP and requires oxygen 
B) Uses 2 ATP, produces 4 ATP and requires oxygen 
C) Uses 2 ATP, produces 4 ATP, without oxygen 
D) Uses 2 ATP, produces 2 ATP, without oxygen 
E) None of the choices are correct 
A) Uses 2 ATP, produces 2 ATP and requires oxygen 
B) Uses 2 ATP, produces 4 ATP and requires oxygen 
C) Uses 2 ATP, produces 4 ATP, without oxygen 
D) Uses 2 ATP, produces 2 ATP, without oxygen 
E) None of the choices are correct

Question 9

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

Accepted Answer

A) Reduction of NAD 
B) Decarboxylation of pyruvic acid 
C) Coenzyme A attaches to an acetyl group 
D) Dehydrogenation of pyruvic acid 
E) Pyruvic acid accepts electrons from NADH 
A) Reduction of NAD 
B) Decarboxylation of pyruvic acid 
C) Coenzyme A attaches to an acetyl group 
D) Dehydrogenation of pyruvic acid 
E) Pyruvic acid accepts electrons from NADH

Question 10

Enzymes that catalyze removal of carbon dioxide from a substrate are called

Accepted Answer

A) Phosphotransferases 
B) Oxidoreductases 
C) Decarboxylases 
D) Aminotransferases 
E) Ligases 
A) Phosphotransferases 
B) Oxidoreductases 
C) Decarboxylases 
D) Aminotransferases 
E) Ligases

Question 11

An oxidase detection test can be used to identify certain bacteria because they lack

Accepted Answer

A) cytochrome c oxidase 
B) NAD 
C) Mitochondria 
D) ATP synthase 
E) Coenzyme Q 
A) cytochrome c oxidase 
B) NAD 
C) Mitochondria 
D) ATP synthase 
E) Coenzyme Q

Question 12

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 13

The reactions of fermentation function to produce _____ molecules for use in glycolysis.

Accepted Answer

A) Pyruvic acid 
B) ATP 
C) NAD 
D) NADH 
E) Glucose 
A) Pyruvic acid 
B) ATP 
C) NAD 
D) NADH 
E) Glucose

Question 14

The best way to control a metabolic pathway is to control the fastest enzyme in the series.

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

ATP is composed of deoxyribose, adenine and 3 phosphate groups.

Accepted Answer

A) True 
 B)False

Question 17

Photosynthesis occurs in chloroplasts of prokaryotes.

Accepted Answer

A) True 
 B)False

Question 18

The principle sites of amphibolic interaction occur during

Accepted Answer

A) Glycolysis and photosynthesis 
B) Krebs cycle and electron transport system 
C) Glycolysis and Krebs cycle 
D) Fermentation and Krebs cycle 
E) Fermentation and glycolysis 
A) Glycolysis and photosynthesis 
B) Krebs cycle and electron transport system 
C) Glycolysis and Krebs cycle 
D) Fermentation and Krebs cycle 
E) Fermentation and glycolysis

Question 19

Most electron carriers are

Accepted Answer

A) Coenzymes 
B) Enzymes 
C) Hydrogens 
D) Inorganic phosphate 
E) All of the choices are correct 
A) Coenzymes 
B) Enzymes 
C) Hydrogens 
D) Inorganic phosphate 
E) All of the choices are correct

Question 20

Each of the following are true of enzymes except

Accepted Answer

A) They can be used over and over 
B) They may or may not require cofactors 
C) Their active site is specific to the substrate 
D) They increase the activation energy of a reaction 
E) All of the choices are true of enzymes 
A) They can be used over and over 
B) They may or may not require cofactors 
C) Their active site is specific to the substrate 
D) They increase the activation energy of a reaction 
E) All of the choices are true of enzymes

Exam 8: An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

When the product of reaction A becomes the reactant of reaction B, the metabolic pathway is

Each of the following are denaturing agents except

Each FADH2 from the Krebs cycle enters the electron transport system and gives rise to _____ ATP's.

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

All of the chemical reactions of the cell are called

Enzymes that can function at boiling water temperatures or other harsh conditions would be termed

During which of the phases of cellular respiration is the majority of ATP formed?

Glycolysis

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

Enzymes that catalyze removal of carbon dioxide from a substrate are called

An oxidase detection test can be used to identify certain bacteria because they lack

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

The reactions of fermentation function to produce _____ molecules for use in glycolysis.

The best way to control a metabolic pathway is to control the fastest enzyme in the series.

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

ATP is composed of deoxyribose, adenine and 3 phosphate groups.

Photosynthesis occurs in chloroplasts of prokaryotes.

The principle sites of amphibolic interaction occur during

Most electron carriers are

Each of the following are true of enzymes except

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host-The Elements of Chemotherapy

Microbe-Human Interactions: Infection, Disease, and Epidemiology

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

Filters

Each FADH₂ from the Krebs cycle enters the electron transport system and gives rise to _____ ATP's.