Question 1

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Accepted Answer

A) True 
 B)False

Question 2

NADH and FADH₂ molecules are oxidized in which step of the aerobic respiration process?

Accepted Answer

A)  Electron transport system
B)  Krebs cycle
C)  Glycolysis
D)  Preparation for Krebs cycleE) B) and C)
F) A) and C)

Question 3

The principal sites of amphibolic interaction occur during ________.

Accepted Answer

A)  glycolysis and photosynthesis
B)  the Krebs cycle and electron transport system
C)  glycolysis and the Krebs cycle
D)  fermentation and the Krebs cycle
E)  fermentation and glycolysisF) D) and E)
G) A) and D)

Question 4

The formation of citrate from oxaloacetate and an acetyl-CoA begins ________.

Accepted Answer

A)  glycolysis
B)  the electron transport system
C)  the Krebs cycle
D)  fermentation
E)  oxidative phosphorylationF) None of the above
G) A) and C)

Question 5

The carrier molecules in the electron transport chain that have a tightly bound metal atom responsible for accepting and donating electrons are ________.

Accepted Answer

A)  NAD⁺
B)  FAD
C)  NADH
D)  cytochromes
E)  flavoproteinsF) None of the above
G) C) and D)

Question 6

FAD,NAD,and coenzyme A are all ________ carriers.

Accepted Answer

A)  hydrogen
B)  electron
C)  ATP
D)  hydrogen and electron
E)  None of the choices are correct.F) C) and E)
G) B) and D)

Question 7

Feedback inhibition,a negative feedback mechanism that regulates enzymes,is best described as ________.

Accepted Answer

A)  substrate binding to DNA,blocking enzyme transcription
B)  product binding to DNA,blocking enzyme transcription
C)  substrate binding to enzyme in noncompetitive site
D)  product binding to enzyme in noncompetitive site
E)  None of the choices are correct.F) All of the above
G) B) and E)

Question 8

A holoenzyme is a combination of a protein and one or more substances called ________.

Accepted Answer

A)  substrates
B)  apoenzymes
C)  catalysts
D)  cofactors
E)  reactantsF) All of the above
G) D) and E)

Question 9

In aerobic respiration,the majority of the reduced coenzyme NADH is produced in ________.

Accepted Answer

A)  glycolysis
B)  the Krebs cycle
C)  the electron transport chain
D)  photosynthesis
E)  the cell membraneF) A) and B)
G) B) and E)

Question 10

Enzymes that are only produced when substrate is present are termed ________.

Accepted Answer

A)  exoenzymes
B)  endoenzymes
C)  constitutive enzymes
D)  induced enzymes
E)  conjugated enzymesF) B) and D)
G) A) and D)

Question 11

Catabolic reactions are coupled with ATP ________,whereas anabolic reactions are coupled with ATP ________.

Accepted Answer

A)  synthesis; hydrolysis
B)  hydrolysis; synthesis
C)  amphibolism; repression
D)  deamination; beta oxidationE) All of the above
F) C) and D)

Question 12

Metabolic pathways that regenerate their starting point are called ________ pathways.

Accepted Answer

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

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

A 67-year-old patient with severe sepsis undergoes a full infectious workup upon admittance to the intensive care unit. Cultures of urine, blood, sputum, and cerebral spinal fluid are obtained. The cultures do not yield a specific organism, so further analysis of the sample is done to determine the characteristics of the microorganism. The organism's metabolic processes are analyzed in the lab.
-The organism is found to grow throughout the entire tube of broth media.Which of the following terms best describes the oxygen requirement of this organism?

Accepted Answer

A)  Obligate aerobe
B)  Microaerophile
C)  Facultative anaerobe
D)  Obligate anaerobeE) A) and B)
F) B) and C)

Question 15

A newborn infant screening yields a positive result for biotinidase deficiency. The RN prepares education for the patient's parents regarding the role of enzymes in metabolism and this enzyme deficiency disorder.
-Which of the following statements,by the patient's mother,best represents an understanding of metabolism?

Accepted Answer

A)  Metabolism involves the production of enzymes.
B)  Metabolism involves all chemical reactions and physical workings of the cell.
C)  Metabolism involves the consumption of energy for workings of the cell.
D)  Metabolism involves the production of energy for workings of the cell.E) B) and C)
F) All of the above

Question 16

Exergonic reactions ________.

Accepted Answer

A)  include synthesis of large carbohydrates
B)  only occur in heterotrophs
C)  release energy
D)  do not occur in anaerobic cellular respiration
E)  occur when ADP binds to inorganic phosphate to form ATPF) C) and E)
G) B) and E)

Question 17

A patient with anorexia nervosa is admitted to the hospital for medical treatment. The patient presents with severe malnutrition and evidence of organ dysfunction. Labs are drawn and continuous intravenous (IV)  fluids are initiated.
-The RN is familiar with ATP production in bacterial and eukaryotic cells.How many ATP per glucose molecule would aerobic respiration yield in the patient's cells?

Accepted Answer

A)  2 ATP
B)  36 ATPs
C)  38 ATP
D)  ATP yield is unpredictable.E) B) and C)
F) B) and D)

Question 18

Most electron carriers are ________.

Accepted Answer

A)  coenzymes
B)  enzymes
C)  hydrogens
D)  inorganic phosphates
E)  polysaccharidesF) A) and E)
G) A) and C)

Question 19

When glucose is broken down by glycolysis during bacterial fermentation,how many ATP are generated?

Accepted Answer

A)  2 ATP
B)  3 ATP
C)  24 ATP
D)  36 ATP
E)  38 ATPF) A) and B)
G) C) and E)

Question 20

Each FADH₂ from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s) .

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) C) and D)
G) B) and D)

Exam 7: Microbial Metabolism

When glucose is broken down by glycolysis during bacterial fermentation,how many ATP are generated?

Correct Answer
verified

In aerobic respiration,the majority of the reduced coenzyme NADH is produced in ________.

Correct Answer
verified

The formation of citrate from oxaloacetate and an acetyl-CoA begins ________.

Correct Answer
verified

Correct Answer
verified

Metabolic pathways that regenerate their starting point are called ________ pathways.

Correct Answer
verified

NADH and FADH₂ molecules are oxidized in which step of the aerobic respiration process?

Correct Answer
verified

A holoenzyme is a combination of a protein and one or more substances called ________.

Correct Answer
verified

Catabolic reactions are coupled with ATP ,whereas anabolic reactions are coupled with ATP .

Correct Answer
verified

The principal sites of amphibolic interaction occur during ________.

Correct Answer
verified

Each FADH₂ from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s) .

Correct Answer
verified

Exergonic reactions ________.

Correct Answer
verified

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

Correct Answer
verified

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Correct Answer
verified

Feedback inhibition,a negative feedback mechanism that regulates enzymes,is best described as ________.

Correct Answer
verified

FAD,NAD,and coenzyme A are all ________ carriers.

Correct Answer
verified

Most electron carriers are ________.

Correct Answer
verified

The carrier molecules in the electron transport chain that have a tightly bound metal atom responsible for accepting and donating electrons are ________.

Correct Answer
verified

Correct Answer
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Correct Answer
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Enzymes that are only produced when substrate is present are termed ________.

Correct Answer
verified

Exam 7: Microbial Metabolism

When glucose is broken down by glycolysis during bacterial fermentation,how many ATP are generated?

Correct AnswerverifiedShow Answer

In aerobic respiration,the majority of the reduced coenzyme NADH is produced in ________.

Correct AnswerverifiedShow Answer

The formation of citrate from oxaloacetate and an acetyl-CoA begins ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Metabolic pathways that regenerate their starting point are called ________ pathways.

Correct AnswerverifiedShow Answer

NADH and FADH₂ molecules are oxidized in which step of the aerobic respiration process?

Correct AnswerverifiedShow Answer

A holoenzyme is a combination of a protein and one or more substances called ________.

Correct AnswerverifiedShow Answer

Catabolic reactions are coupled with ATP ________,whereas anabolic reactions are coupled with ATP ________.

Correct AnswerverifiedShow Answer

The principal sites of amphibolic interaction occur during ________.

Correct AnswerverifiedShow Answer

Each FADH₂ from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s) .

Correct AnswerverifiedShow Answer

Exergonic reactions ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Correct AnswerverifiedShow Answer

Feedback inhibition,a negative feedback mechanism that regulates enzymes,is best described as ________.

Correct AnswerverifiedShow Answer

FAD,NAD,and coenzyme A are all ________ carriers.

Correct AnswerverifiedShow Answer

Most electron carriers are ________.

Correct AnswerverifiedShow Answer

The carrier molecules in the electron transport chain that have a tightly bound metal atom responsible for accepting and donating electrons are ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Enzymes that are only produced when substrate is present are termed ________.

Correct AnswerverifiedShow Answer

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Catabolic reactions are coupled with ATP ,whereas anabolic reactions are coupled with ATP .

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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