Question 1

A molecule that is a storage form of carbohydrate is

Accepted Answer

A)   glycogen.
B)   glycerol.
C)   DNA.
D)   an amino acid.E) C) and D)
F) All of the above

Question 2

Which of the nitrogenous bases is part of RNA but not DNA?

Accepted Answer

A)   Cytosine
B)   Thymine
C)   Guanine
D)   UracilE) A) and B)
F) C) and D)

Question 3

An active site is the part of a substrate molecule that binds an enzyme.

Accepted Answer

A) True 
 B)False

Question 4

A substance that causes a mutation is called a __________.

Accepted Answer

The answer of A substance that causes a mutation is...

Question 5

When a sucrose molecule is decomposed to yield a glucose molecule and a fructose molecule,

Accepted Answer

A)   dehydration synthesis occurs.
B)   a water molecule is released.
C)   a water molecule is used.
D)   starch is consumed.E) None of the above
F) A) and B)

Question 6

Releasing the energy in glucose molecules is an example of catabolism.

Accepted Answer

A) True 
 B)False

Question 7

Dehydration synthesis is catabolic and hydrolysis is anabolic.

Accepted Answer

A) True 
 B)False

Question 8

Transcription and translation differ in that

Accepted Answer

A)   transcription produces DNA and translation produces RNA.
B)   transcription produces RNA and translation produces DNA.
C)   transcription produces protein and translation produces RNA.
D)   transcription produces RNA and translation produces protein.E) B) and D)
F) B) and C)

Question 9

ATP is important to cellular processes because it

Accepted Answer

A)   is formed by muscles contracting or whenever cellular work occurs.
B)   provides energy for cellular work when the terminal, high-energy bond is broken.
C)   releases oxygen when high-energy phosphate bonds are broken.
D)   is a by-product of all catabolic reactions.E) A) and B)
F) A) and C)

Question 10

Metabolism refers to all of the chemical reactions in a cell.

Accepted Answer

A) True 
 B)False

Question 11

Which DNA sequence can encode the amino acid sequence ile-asp-ser-cys-his-tyr?

Accepted Answer

A)   TAGCTGTCAACAGTGATA
B)   TAACTGTCGACGGTGATG
C)   TAACTAAGTACGGTGATG
D)   All of the answer choices are correctE) A) and B)
F) A) and D)

Question 12

An important mechanism that controls metabolic pathways under physiological conditions is

Accepted Answer

A)   positive feedback.
B)   signal transduction.
C)   negative feedback.
D)   genetic control.E) A) and B)
F) C) and D)

Question 13

A chaperone protein

Accepted Answer

A)   brings amino acids to the appropriate tRNAs.
B)   brings a tRNA to the appropriate codon on mRNA.
C)   helps a protein to fold.
D)   attracts ATP.E) A) and B)
F) A) and C)

Question 14

Three types of RNA participate in protein synthesis.

Accepted Answer

A) True 
 B)False

Question 15

Anaerobic reactions of cellular respiration

Accepted Answer

A)   break down glucose into 2 pyruvic acid molecules.
B)   occur in the absence of oxygen.
C)   transfer energy to ATP molecules.
D)   do all of the above.E) B) and C)
F) A) and D)

Question 16

"Metabolism" refers to

Accepted Answer

A)   the reactions in the body that synthesize proteins and nucleic acids.
B)   the reactions in the body that break down proteins and nucleic acids.
C)   all of the chemical reactions in a cell.
D)   the breakdown of glucose molecules to release energy.E) None of the above
F) C) and D)

Question 17

Energy is defined as

Accepted Answer

A)   something important for chemical reactions.
B)   the ability to do work.
C)   the heat given off from chemical reactions.
D)   the heat required to start a reaction.E) A) and B)
F) None of the above

Question 18

Transcription yields protein and translation produces RNA.

Accepted Answer

A) True 
 B)False

Question 19

A peptide bond forms between

Accepted Answer

A)   a tRNA and an mRNA.
B)   adjacent amino acids.
C)   an mRNA and an rRNA.
D)   a gene and a protein.E) A) and B)
F) A) and D)

Question 20

The synthesis of an ATP molecule requires two ADP molecules.

Accepted Answer

A) True 
 B)False

Exam 4: Cellular Metabolism

When a sucrose molecule is decomposed to yield a glucose molecule and a fructose molecule,

Correct AnswerverifiedShow Answer

Releasing the energy in glucose molecules is an example of catabolism.

Correct AnswerverifiedShow Answer

Metabolism refers to all of the chemical reactions in a cell.

Correct AnswerverifiedShow Answer

Anaerobic reactions of cellular respiration

Correct AnswerverifiedShow Answer

A chaperone protein

Correct AnswerverifiedShow Answer

Transcription and translation differ in that

Correct AnswerverifiedShow Answer

Three types of RNA participate in protein synthesis.

Correct AnswerverifiedShow Answer

"Metabolism" refers to

Correct AnswerverifiedShow Answer

The synthesis of an ATP molecule requires two ADP molecules.

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A molecule that is a storage form of carbohydrate is

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Which DNA sequence can encode the amino acid sequence ile-asp-ser-cys-his-tyr?

Correct AnswerverifiedShow Answer

Transcription yields protein and translation produces RNA.

Correct AnswerverifiedShow Answer

Which of the nitrogenous bases is part of RNA but not DNA?

Correct AnswerverifiedShow Answer

A peptide bond forms between

Correct AnswerverifiedShow Answer

ATP is important to cellular processes because it

Correct AnswerverifiedShow Answer

A substance that causes a mutation is called a __________.

Correct AnswerverifiedShow Answer

An active site is the part of a substrate molecule that binds an enzyme.

Correct AnswerverifiedShow Answer

An important mechanism that controls metabolic pathways under physiological conditions is

Correct AnswerverifiedShow Answer

Dehydration synthesis is catabolic and hydrolysis is anabolic.

Correct AnswerverifiedShow Answer

Energy is defined as

Correct AnswerverifiedShow Answer

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