Question 1

A cell has burned one glucose molecule, resulting in the net production of 2 ATP. What can be said about the process that occurred?

Accepted Answer

A)   Glucose was burned anaerobically.
B)   Glucose was burned aerobically.C) A) and B)
D) undefined

Question 2

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which results in the production of pyruvic acid?

Accepted Answer

A)   Aerobic phase
B)   Anaerobic phaseC) A) and B)
D) undefined

Question 3

Glycolysis is classified as the ____________ phase of cellular respiration.

Accepted Answer

A)   anaerobic
B)   aerobicC) A) and B)
D) undefined A

Question 4

A metabolic pathway is a sequence of enzyme-catalyzed reactions.

Accepted Answer

A) True 
 B)False

Question 5

What are the net end products of glycolysis?

Accepted Answer

A)   4 ATP, 2 acetyl groups
B)   2 ATP, 2 pyruvic acids
C)   32 ATP, 2 acetyl groups, 2 pyruvic acids
D)   32 ATP, 6 H 2O, 6 CO 2
E)   2 ATP, 2 H 2O, 2 CO 2F) A) and C)
G) B) and E)

Question 6

Name the type of reaction that occurs when two monosaccharides combine to form the disaccharide called sucrose.

Accepted Answer

A)   The anabolic reaction called dehydration synthesis
B)   The catabolic reaction called dehydration synthesis
C)   The catabolic reaction called hydrolysis
D)   The anabolic reaction called hydrolysisE) A) and B)
F) A) and C)

Question 7

For each DNA molecule, the process of DNA replication results in two identical complete DNA molecules. What is the composition of these two end products of DNA replication?

Accepted Answer

A)   Each DNA molecule consists of one old strand from the original DNA molecule and one newly formed strand.
B)   One DNA molecule consists of the two original strands from the original DNA molecule; the other consists of two newly formed DNA strands.C) A) and B)
D) undefined

Question 8

Which enzyme is critical to the process of transcription?

Accepted Answer

A)   RNA polymerase
B)   DNA polymeraseC) A) and B)
D) undefined

Question 9

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which results in the greater production of ATP?

Accepted Answer

A)   Aerobic phase
B)   Anaerobic phaseC) A) and B)
D) undefined

Question 10

What is the function of DNA polymerase?

Accepted Answer

A)   Forms new DNA strand during DNA replication
B)   Causes hydrogen bonds between DNA strands to break
C)   Carries genetic information from nucleus out to ribosomes in cytoplasm
D)   Forms messenger RNA during protein synthesisE) B) and D)
F) B) and C) A

Question 11

The transfer of genetic information from the nucleus into the cytoplasm is a function of what molecule?

Accepted Answer

A)   DNA
B)   Ribosomal RNA
C)   Messenger RNA
D)   Transfer RNA
E)   ATPF) A) and E)
G) B) and D)

Question 12

The breakdown of starch to maltose is an example of what type of reaction?

Accepted Answer

A)   Anabolic reaction
B)   Catabolic reactionC) A) and B)
D) undefined

Question 13

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which one involves the compound called acetyl CoA?

Accepted Answer

A)   Aerobic phase
B)   Anaerobic phaseC) A) and B)
D) undefined

Question 14

What part of an ATP molecule holds the energy that can then be used in metabolism?

Accepted Answer

A)   Chemical bonds of the adenosine group
B)   Chemical bonds of the nitrogen-containing base
C)   Chemical bonds between the phosphate groups
D)   Chemical bond attaching the adenosine group to the first phosphate groupE) None of the above
F) B) and C)

Question 15

Enzymes are best described as what kind of molecule?

Accepted Answer

A)   Proteins that catalyze chemical reactions
B)   Nucleic acids that code for protein production
C)   Compounds that are converted to products during a chemical reaction
D)   Proteins that increase the activation energy of chemical reactionsE) All of the above
F) None of the above

Question 16

Complete oxidation of glucose results in the production of nitrogen and water.

Accepted Answer

A) True 
 B)False

Question 17

By definition, anabolism and catabolism together constitute __________.

Accepted Answer

A)   metabolism
B)   protein synthesis
C)   dehydration synthesis
D)   hydrolysis
E)   cellular respirationF) All of the above
G) B) and E)

Question 18

The genetic condition called phenylketonuria results from a defect in a gene called PAH which helps create phenylalanine hydroxylase, the enzyme that breaks down the amino acid phenylalanine. What is the outcome of this condition and the lack of this enzyme?

Accepted Answer

A)   Phenylalanine accumulates.
B)   Phenylalanine is completely used up, deleting its stores in the body.
C)   A different enzyme begins breaking down phenylalanine.
D)   Phenylalanine hydroxylase accumulates.E) B) and C)
F) B) and D)

Question 19

What is the "genetic code"?

Accepted Answer

A)   A sequence of amino acids that instructs cells how to make specific nucleic acids
B)   A sequence of nucleotide bases that instructs cells how to make specific protein molecules
C)   A sequence of amino acids in proteins that act as enzymes
D)   A sequence of proteins embedded in the cell membrane
E)   A sequence of enzymes located within the mitochondriaF) All of the above
G) A) and B) B

Question 20

Compare translation and transcription. Which process occurs in the cytoplasm?

Accepted Answer

A)   Translation
B)   TranscriptionC) A) and B)
D) undefined

Exam 4: Cellular Metabolism

A cell has burned one glucose molecule, resulting in the net production of 2 ATP. What can be said about the process that occurred?

Correct AnswerverifiedShow Answer

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which results in the production of pyruvic acid?

Correct AnswerverifiedShow Answer

Glycolysis is classified as the ____________ phase of cellular respiration.

Correct AnswerverifiedA

A metabolic pathway is a sequence of enzyme-catalyzed reactions.

Correct AnswerverifiedShow Answer

What are the net end products of glycolysis?

Correct AnswerverifiedShow Answer

Name the type of reaction that occurs when two monosaccharides combine to form the disaccharide called sucrose.

Correct AnswerverifiedShow Answer

For each DNA molecule, the process of DNA replication results in two identical complete DNA molecules. What is the composition of these two end products of DNA replication?

Correct AnswerverifiedShow Answer

Which enzyme is critical to the process of transcription?

Correct AnswerverifiedShow Answer

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which results in the greater production of ATP?

Correct AnswerverifiedShow Answer

What is the function of DNA polymerase?

Correct AnswerverifiedA

The transfer of genetic information from the nucleus into the cytoplasm is a function of what molecule?

Correct AnswerverifiedShow Answer

The breakdown of starch to maltose is an example of what type of reaction?

Correct AnswerverifiedShow Answer

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which one involves the compound called acetyl CoA?

Correct AnswerverifiedShow Answer

What part of an ATP molecule holds the energy that can then be used in metabolism?

Correct AnswerverifiedShow Answer

Enzymes are best described as what kind of molecule?

Correct AnswerverifiedShow Answer

Complete oxidation of glucose results in the production of nitrogen and water.

Correct AnswerverifiedShow Answer

By definition, anabolism and catabolism together constitute __________.

Correct AnswerverifiedShow Answer

The genetic condition called phenylketonuria results from a defect in a gene called PAH which helps create phenylalanine hydroxylase, the enzyme that breaks down the amino acid phenylalanine. What is the outcome of this condition and the lack of this enzyme?

Correct AnswerverifiedShow Answer

What is the "genetic code"?

Correct AnswerverifiedB

Compare translation and transcription. Which process occurs in the cytoplasm?

Correct AnswerverifiedShow Answer

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A

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A

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B

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