Question 1

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which one occurs in the cytoplasm?

Accepted Answer

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

Question 2

Where in the cell does the anaerobic phase of cellular respiration occur?

Accepted Answer

A)   In the cytosol
B)   In the mitochondria
C)   In the nucleus
D)   In the Golgi apparatus
E)   In specialized vesiclesF) All of the above
G) B) and D)

Question 3

A cofactor is a nonprotein component with which some enzymes must combine in order to be active.

Accepted Answer

A) True 
 B)False

Question 4

What is the fate of the energy released during the reactions of cellular respiration?

Accepted Answer

A)   10% used to produce ATP; 90% lost as heat
B)   40% used to produce ATP; 60% lost as heat
C)   60% used to produce ATP; 40% lost as heat
D)   90% used to produce ATP; 10% lost as heatE) A) and B)
F) A) and C)

Question 5

The oxidation of glucose, as occurs with cellular respiration, results in its complete breakdown.

Accepted Answer

A) True 
 B)False

Question 6

Each amino acid is represented in a DNA molecule by a particular sequence of __________ nucleotides.

Accepted Answer

A)   2
B)   3
C)   4
D)   6E) A) and D)
F) B) and C)

Question 7

What is the substrate for the enzyme called protease?

Accepted Answer

A)   Hydrogen peroxide
B)   Proteins
C)   Protons
D)   Sugars, such as glucose
E)   CholesterolF) B) and E)
G) B) and D)

Question 8

The type of energy used by most metabolic processes is chemical energy.

Accepted Answer

A) True 
 B)False

Question 9

What are the steps for an enzyme-catalyzed reaction?

Accepted Answer

A)   Substrate + enzyme→ enzyme-substrate complex→ product + enzyme
B)   Enzyme→ substrate + product→ enzyme-substrate complex + enzyme
C)   Product + enzyme-substrate complex→ enzyme→ substrate + enzyme
D)   Enzyme-substrate complex→ enzyme + substrate→ product + enzyme
E)   Enzyme + product→ enzyme-product complex→ substrate + enzymeF) All of the above
G) D) and E)

Question 10

Compare translation and transcription. Which process relies on ribosomes to complete the process?

Accepted Answer

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

Question 11

When is it necessary for DNA replication to occur?

Accepted Answer

A)   When a cell divides
B)   When protein synthesis occurs
C)   Immediately prior to formation of messenger RNA
D)   When a gene is activated
E)   When a cell diesF) B) and D)
G) A) and B)

Question 12

An ATP molecule includes three phosphate groups.

Accepted Answer

A) True 
 B)False

Question 13

What are coenzymes?

Accepted Answer

A)   Small organic molecules required by some enzymes to become active
B)   Small molecules that bind to the active sites of enzymes and undergo chemical changes
C)   Ions that act to regulate the pace of reactions in a metabolic pathway
D)   Molecules that stimulate the production of enzymes needed by a cellE) A) and D)
F) B) and C)

Question 14

Compare translation and transcription. Which process relies on codons to accurately complete the process?

Accepted Answer

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

Question 15

The four nitrogenous bases occurring in DNA are adenine, cytosine, guanine, and uracil.

Accepted Answer

A) True 
 B)False

Question 16

What substance becomes more abundant as a result of cellular respiration?

Accepted Answer

A)   Oxygen
B)   Glucose
C)   Citric acid
D)   Glycogen
E)   ATPF) A) and B)
G) C) and E)

Exam 4: Cellular Metabolism

When is it necessary for DNA replication to occur?

Correct Answer
verified

A cofactor is a nonprotein component with which some enzymes must combine in order to be active.

Correct Answer
verified

Each amino acid is represented in a DNA molecule by a particular sequence of __________ nucleotides.

Correct Answer
verified

What is the fate of the energy released during the reactions of cellular respiration?

Correct Answer
verified

Where in the cell does the anaerobic phase of cellular respiration occur?

Correct Answer
verified

The four nitrogenous bases occurring in DNA are adenine, cytosine, guanine, and uracil.

Correct Answer
verified

Compare translation and transcription. Which process relies on codons to accurately complete the process?

Correct Answer
verified

What is the substrate for the enzyme called protease?

Correct Answer
verified

An ATP molecule includes three phosphate groups.

Correct Answer
verified

What are coenzymes?

Correct Answer
verified

The oxidation of glucose, as occurs with cellular respiration, results in its complete breakdown.

Correct Answer
verified

What substance becomes more abundant as a result of cellular respiration?

Correct Answer
verified

Compare translation and transcription. Which process relies on ribosomes to complete the process?

Correct Answer
verified

What are the steps for an enzyme-catalyzed reaction?

Correct Answer
verified

The type of energy used by most metabolic processes is chemical energy.

Correct Answer
verified

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which one occurs in the cytoplasm?

Correct Answer
verified

Exam 4: Cellular Metabolism

When is it necessary for DNA replication to occur?

Correct AnswerverifiedShow Answer

A cofactor is a nonprotein component with which some enzymes must combine in order to be active.

Correct AnswerverifiedShow Answer

Each amino acid is represented in a DNA molecule by a particular sequence of __________ nucleotides.

Correct AnswerverifiedShow Answer

What is the fate of the energy released during the reactions of cellular respiration?

Correct AnswerverifiedShow Answer

Where in the cell does the anaerobic phase of cellular respiration occur?

Correct AnswerverifiedShow Answer

The four nitrogenous bases occurring in DNA are adenine, cytosine, guanine, and uracil.

Correct AnswerverifiedShow Answer

Compare translation and transcription. Which process relies on codons to accurately complete the process?

Correct AnswerverifiedShow Answer

What is the substrate for the enzyme called protease?

Correct AnswerverifiedShow Answer

An ATP molecule includes three phosphate groups.

Correct AnswerverifiedShow Answer

What are coenzymes?

Correct AnswerverifiedShow Answer

The oxidation of glucose, as occurs with cellular respiration, results in its complete breakdown.

Correct AnswerverifiedShow Answer

What substance becomes more abundant as a result of cellular respiration?

Correct AnswerverifiedShow Answer

Compare translation and transcription. Which process relies on ribosomes to complete the process?

Correct AnswerverifiedShow Answer

What are the steps for an enzyme-catalyzed reaction?

Correct AnswerverifiedShow Answer

The type of energy used by most metabolic processes is chemical energy.

Correct AnswerverifiedShow Answer

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which one occurs in the cytoplasm?

Correct AnswerverifiedShow Answer

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