Question 1

Photosynthesis occurs in chloroplasts of prokaryotes.

Accepted Answer

A) True 
 B)False

Question 2

All of the chemical reactions of the cell are called

Accepted Answer

A)  Catabolism
B)  Redox reactions
C)  Phosphorylation
D)  Metabolism
E)  Cellular respirationF) A) and B)
G) D) and E)

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

A)  Phosphotransferases
B)  Oxidoreductases
C)  Decarboxylases
D)  Aminotransferases
E)  LigasesF) A) and B)
G) A) and E)

Question 6

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 correctF) D) and E)
G) A) and E)

Question 7

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)  ExtremozymesF) A) and B)
G) All of the above

Question 8

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)  DivergentF) A) and D)
G) B) and E) A

Question 9

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 glycolysisF) D) and E)
G) B) and D)

Question 10

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

Accepted Answer

A)  Pyruvic acid
B)  ATP
C)  NAD
D)  NADH
E)  GlucoseF) A) and E)
G) A) and B)

Question 11

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

Accepted Answer

A) True 
 B)False

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)  6F) A) and B)
G) C) and E)

Question 13

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 correctF) A) and E)
G) A) and D) B

Question 14

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)  5F) A) and C)
G) A) and E) B

Question 15

Most electron carriers are

Accepted Answer

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

Question 16

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 QF) C) and D)
G) B) and E)

Question 17

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Accepted Answer

A) True 
 B)False

Question 18

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 NADHF) A) and D)
G) B) and D)

Question 19

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 moleculesF) D) and E)
G) A) and D)

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 enzymesF) A) and B)
G) C) and D)

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

Photosynthesis occurs in chloroplasts of prokaryotes.

Correct AnswerverifiedShow Answer

All of the chemical reactions of the cell are called

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Glycolysis

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedA

The principle sites of amphibolic interaction occur during

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Each of the following are denaturing agents except

Correct AnswerverifiedB

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

Correct AnswerverifiedB

Most electron carriers are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Each of the following are true of enzymes except

Correct AnswerverifiedShow Answer

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A

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B

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

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B

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