Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

The basic steps of an enzyme-catalyzed reaction are:

Accepted Answer

A)  substrate and product combine,forming an S-P complex.The reaction occurs,enzymes are released,and the unchanged substrate is released and recycled.
B)  substrate and enzyme combine,forming an E-S complex.The reaction occurs,products are released,and the unchanged enzyme is released and recycled.
C)  substrate,enzyme,and product combine,forming an S-E-P complex.The reaction occurs,enzymes are released,and the unchanged enzyme is released and recycled.
D)  enzyme and product combine,forming an E-P complex.The reaction reverses,enzymes are released,and the unchanged substrate is released and recycleD.E) B) and D)
F) B) and C)

Question 3

A molecule that carries energy in a form the cell can use is

Accepted Answer

A)  glucose.
B)  glycogen.
C)  vitamin C
D)  ATP.E) B) and C)
F) None of the above

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

The portion of a DNA molecule that contains the genetic information for making a protein is called a gene.

Accepted Answer

A) True 
 B)False

Question 6

In the DNA damage response

Accepted Answer

A)  repair enzymes replace mismatched nucleotides in DNA.
B)  repair enzymes replace mismatched nucleotides in RNA.
C)  repair enzymes replace mismatched amino acids in protein.
D)  more than one codon encodes one type of amino aciD.E) A) and B)
F) A) and C)

Question 7

The genetic code is

Accepted Answer

A)  the correspondence between a sequence of three DNA nucleotides and a specific amino acid.
B)  the correspondence between a DNA nucleotide and an RNA nucleotide.
C)  the correspondence between a gene and a genome.
D)  the correspondence between a specific amino acid and a specific gene.E) B) and D)
F) B) and C)

Question 8

A DNA sequence AACGGTGCACCACGG encodes an mRNA of sequence

Accepted Answer

A)  AACGGUGCACCACGG.
B)  UUGCCACGUGGUGCC.
C)  AACGGTGCACCACGG.
D)  UUCGGAGCUCCUCGG.E) C) and D)
F) None of the above

Question 9

Humans require vitamins in their diets because these nutrients

Accepted Answer

A)  provide energy.
B)  are broken down by catabolic reactions.
C)  bond with minerals.
D)  act as coenzymes.E) None of the above
F) C) and D)

Question 10

Oxidation of glucose is important because it releases energy.

Accepted Answer

A) True 
 B)False

Question 11

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) A) and B)
F) B) and D)

Question 12

A mutation can cause disease if

Accepted Answer

A)  the DNA sequence does not change.
B)  the DNA sequence changes so that one amino acid is substituted for another in a way that affects the encoded protein's functioning.
C)  the DNA sequence changes so that one amino acid is substituted for another in a way that does not alter the encoded protein's functioning.
D)  it attracts mutagens.E) All of the above
F) A) and D)

Question 13

The molecule that an enzyme affects is its _________.

Accepted Answer

The answer of The molecule that an enzyme affects is...

Question 14

Catabolism refers to

Accepted Answer

A)  chemical reactions that acquire energy.
B)  chemical reactions that release energy.
C)  synthesis of large molecules.
D)  the formation of genetic material.E) A) and D)
F) C) and D)

Question 15

All of the genetic information in a cell is a genome.

Accepted Answer

A) True 
 B)False

Question 16

The electron transport chain is a series of enzyme complexes that pass electrons,releasing energy that is used to phosphorylate ADP to ATP on the inner mitochondrial membrane.

Accepted Answer

A) True 
 B)False

Question 17

Copying DNA information into an mRNA molecule is called

Accepted Answer

A)  translation.
B)  synthesis.
C)  replication.
D)  transcription.E) A) and B)
F) A) and C)

Question 18

Proteins are critical to metabolism because all proteins are enzymes.

Accepted Answer

A) True 
 B)False

Question 19

The correspondence between a unit of DNA information and an amino acid is the genetic ______.

Accepted Answer

The answer of The correspondence between a unit of DNA...

Question 20

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 C)
F) C) and D)

Exam 4: Cellular Metabolism

Transcription and translation differ in that

Correct AnswerverifiedShow Answer

Copying DNA information into an mRNA molecule is called

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Proteins are critical to metabolism because all proteins are enzymes.

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A molecule that carries energy in a form the cell can use is

Correct AnswerverifiedShow Answer

The molecule that an enzyme affects is its _________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Oxidation of glucose is important because it releases energy.

Correct AnswerverifiedShow Answer

A mutation can cause disease if

Correct AnswerverifiedShow Answer

The genetic code is

Correct AnswerverifiedShow Answer

A DNA sequence AACGGTGCACCACGG encodes an mRNA of sequence

Correct AnswerverifiedShow Answer

The basic steps of an enzyme-catalyzed reaction are:

Correct AnswerverifiedShow Answer

Humans require vitamins in their diets because these nutrients

Correct AnswerverifiedShow Answer

The correspondence between a unit of DNA information and an amino acid is the genetic ______.

Correct AnswerverifiedShow Answer

The electron transport chain is a series of enzyme complexes that pass electrons,releasing energy that is used to phosphorylate ADP to ATP on the inner mitochondrial membrane.

Correct AnswerverifiedShow Answer

In the DNA damage response

Correct AnswerverifiedShow Answer

The portion of a DNA molecule that contains the genetic information for making a protein is called a gene.

Correct AnswerverifiedShow Answer

Catabolism refers to

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All of the genetic information in a cell is a genome.

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