Question 1

All of the following are true of enzymes except ________.

Accepted Answer

A)   enzymes increase the rate of a chemical reaction
B)   enzymes are not part of the products of a chemical reaction
C)   enzymes create a chemical reaction
D)   enzymes are not consumed in a chemical reactionE) A) and B)
F) B) and C)

Question 2

In bacterial cells, the electron carriers NAD+ and FAD are found in the ________, whereas the cytochromes are located in the ________.

Accepted Answer

A)   cytoplasm; cell membrane
B)   mitochondria; cytoplasm
C)   cell membrane; cytoplasm
D)   cell membrane; inner mitochondrial membraneE) B) and D)
F) C) and D)

Question 3

Reduction of nitrogen-oxygen ions, such as nitrate, by some bacteria is called ________.

Accepted Answer

A)   aerobic respiration
B)   denitrification
C)   nitrification
D)   fermentation
E)   deaminationF) B) and E)
G) A) and E)

Question 4

Each of the following is 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 initial energy required for a reaction to start
E)   All of the choices are true of enzymesF) B) and C)
G) A) and C)

Question 5

Glycolysis ________.

Accepted Answer

A)   uses 2 ATPs, produces 2 ATPs, and requires oxygen
B)   uses 2 ATPs, produces 4 ATPs, and requires oxygen
C)   uses 2 ATPs, produces 4 ATPs, without using oxygen
D)   uses 2 ATPs, produces 2 ATPs, without using oxygen
E)   None of the choices are correct.F) B) and E)
G) C) and D)

Question 6

In a bacterial cell, synthesis of an essential amino acid would take place continually unless the amino acid was abundant in the growth media, in which case ________.

Accepted Answer

A)   the genes that code for the enzymes that catalyze the synthesis of the amino acid would be repressed
B)   the genes that code for the enzymes that catalyze the synthesis of the amino acid would be induced
C)   the enzymes that catalyze the reactions to hydrolyze the amino acid would be repressed
D)   the enzymes that catalyze the reactions to hydrolyze the amino acid would be inducedE) All of the above
F) None of the above

Question 7

In bacterial cells, when glucose is completely oxidized by all the pathways of aerobic cellular respiration, what is the maximum number of ATP generated?

Accepted Answer

A)   2 ATP
B)   3 ATP
C)   24 ATP
D)   38 ATP
E)   42 ATPF) A) and B)
G) D) and E)

Question 8

Deamination is the removal of a(n)  ________ group in proteins.

Accepted Answer

A)   carboxyl
B)   amino
C)   phosphate
D)   hydroxyl
E)   glycerolF) None of the above
G) B) and D)

Question 9

Formation of peptide bonds between amino acids to build a polypeptide would be called ________.

Accepted Answer

A)   anabolism
B)   phosphorylation
C)   fermentation
D)   exergonic
E)   glycolysisF) B) and D)
G) B) and E)

Question 10

A metabolic pathway begins as a series of linear reactions then, at a specific point in the pathway, two reactants are produced, each of which proceed in a linear, yet different chain of reactions. This is an example of a ________.

Accepted Answer

A)   divergent pathway
B)   convergent pathway
C)   cyclical pathway
D)   linear pathwayE) A) and B)
F) All of the above

Question 11

Which of the following is not true of anaerobic respiration?

Accepted Answer

A)   Involves glycolysis
B)   Generates some ATP
C)   Utilizes an electron transport system
D)   Uses the same final electron acceptor as aerobic respirationE) A) and B)
F) B) and D)

Question 12

Based upon knowledge of enzymes and metabolic processes, which of the following outcomes should the parents expect if the deficiency is not treated?

Accepted Answer

A)   No effect on the patient's health
B)   Reduced immunity in adulthood in the patient
C)   Mildly impaired vision in the patient
D)   Permanent damage to organ systems and/or death of the patientE) C) and D)
F) B) and C)

Question 13

In the electron transport chain, the collective, captured energy released by electrons is used to phosphorylate ________.

Accepted Answer

A)   ATP
B)   ADP
C)   pyruvic acid
D)   oxygen
E)   NADF) B) and D)
G) A) and B)

Question 14

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

Accepted Answer

A)   linear
B)   bidirectional
C)   convergent
D)   cyclic
E)   divergentF) A) and B)
G) A) and E)

Question 15

Which of the following is not true regarding glycolysis?

Accepted Answer

A)   It occurs without oxygen
B)   It ends with the formation of pyruvic acid
C)   It occurs during fermentation
D)   It degrades glucose to CO2 and H2O
E)   It involves the reduction of NAD+F) All of the above
G) A) and C)

Question 16

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

Accepted Answer

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

Question 17

Inborn errors of metabolism ________.

Accepted Answer

A)   are caused by infectious agents
B)   produce very specific signs and symptoms, making them easy to diagnose
C)   cannot be diagnosed by DNA testing
D)   may not become evident until adulthoodE) B) and C)
F) All of the above

Question 18

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Accepted Answer

A) True 
 B)False

Question 19

Biochemical testing reveals that the organism further reduces nitrite to produce nitrous oxide. Based on this byproduct, which of the following is the most likely catabolic pathway utilized by this organism?

Accepted Answer

A)   Aerobic respiration
B)   Anaerobic respiration
C)   Fermentation
D)   Aerobic respiration, anaerobic respiration, and fermentation can all lead to the production of nitrous oxideE) B) and D)
F) C) and D)

Exam 7: Microbial Metabolism

A metabolic pathway begins as a series of linear reactions then, at a specific point in the pathway, two reactants are produced, each of which proceed in a linear, yet different chain of reactions. This is an example of a ________.

Correct Answer
verified

Based upon knowledge of enzymes and metabolic processes, which of the following outcomes should the parents expect if the deficiency is not treated?

Correct Answer
verified

Which of the following is not true regarding glycolysis?

Correct Answer
verified

All of the following are true of enzymes except ________.

Correct Answer
verified

Which of the following is not true of anaerobic respiration?

Correct Answer
verified

Deamination is the removal of a(n) ________ group in proteins.

Correct Answer
verified

Formation of peptide bonds between amino acids to build a polypeptide would be called ________.

Correct Answer
verified

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

Correct Answer
verified

In the electron transport chain, the collective, captured energy released by electrons is used to phosphorylate ________.

Correct Answer
verified

In a bacterial cell, synthesis of an essential amino acid would take place continually unless the amino acid was abundant in the growth media, in which case ________.

Correct Answer
verified

Reduction of nitrogen-oxygen ions, such as nitrate, by some bacteria is called ________.

Correct Answer
verified

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Correct Answer
verified

In bacterial cells, when glucose is completely oxidized by all the pathways of aerobic cellular respiration, what is the maximum number of ATP generated?

Correct Answer
verified

Inborn errors of metabolism ________.

Correct Answer
verified

Biochemical testing reveals that the organism further reduces nitrite to produce nitrous oxide. Based on this byproduct, which of the following is the most likely catabolic pathway utilized by this organism?

Correct Answer
verified

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

Correct Answer
verified

In bacterial cells, the electron carriers NAD⁺ and FAD are found in the , whereas the cytochromes are located in the .

Correct Answer
verified

Glycolysis ________.

Correct Answer
verified

Each of the following is true of enzymes except ________.

Correct Answer
verified

Exam 7: Microbial Metabolism

A metabolic pathway begins as a series of linear reactions then, at a specific point in the pathway, two reactants are produced, each of which proceed in a linear, yet different chain of reactions. This is an example of a ________.

Correct AnswerverifiedShow Answer

Based upon knowledge of enzymes and metabolic processes, which of the following outcomes should the parents expect if the deficiency is not treated?

Correct AnswerverifiedShow Answer

Which of the following is not true regarding glycolysis?

Correct AnswerverifiedShow Answer

All of the following are true of enzymes except ________.

Correct AnswerverifiedShow Answer

Which of the following is not true of anaerobic respiration?

Correct AnswerverifiedShow Answer

Deamination is the removal of a(n) ________ group in proteins.

Correct AnswerverifiedShow Answer

Formation of peptide bonds between amino acids to build a polypeptide would be called ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In the electron transport chain, the collective, captured energy released by electrons is used to phosphorylate ________.

Correct AnswerverifiedShow Answer

In a bacterial cell, synthesis of an essential amino acid would take place continually unless the amino acid was abundant in the growth media, in which case ________.

Correct AnswerverifiedShow Answer

Reduction of nitrogen-oxygen ions, such as nitrate, by some bacteria is called ________.

Correct AnswerverifiedShow Answer

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Correct AnswerverifiedShow Answer

In bacterial cells, when glucose is completely oxidized by all the pathways of aerobic cellular respiration, what is the maximum number of ATP generated?

Correct AnswerverifiedShow Answer

Inborn errors of metabolism ________.

Correct AnswerverifiedShow Answer

Biochemical testing reveals that the organism further reduces nitrite to produce nitrous oxide. Based on this byproduct, which of the following is the most likely catabolic pathway utilized by this organism?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In bacterial cells, the electron carriers NAD+ and FAD are found in the ________, whereas the cytochromes are located in the ________.

Correct AnswerverifiedShow Answer

Glycolysis ________.

Correct AnswerverifiedShow Answer

Each of the following is true of enzymes except ________.

Correct AnswerverifiedShow Answer

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verified

In bacterial cells, the electron carriers NAD⁺ and FAD are found in the , whereas the cytochromes are located in the .

Correct Answer
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Correct Answer
verified

Correct Answer
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