Question 1

Which of the following best describes the interaction between an enzyme and its substrate?

Accepted Answer

A)   The enzyme surrounds and completely contains the substrate.
B)   The substrate surrounds and completely contains the enzyme.
C)   The enzyme temporarily deactivates the substrate.
D)   Part of the enzyme temporarily binds part of the substrate molecule.E) All of the above
F) A) and D)

Question 2

The molecule that an enzyme affects is its _________.

Accepted Answer

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

Question 3

Each individual has her or his own genetic code.

Accepted Answer

A) True 
 B)False

Question 4

The genetic code is the correspondence between DNA sequence and amino acid sequence of a protein.

Accepted Answer

A) True 
 B)False

Question 5

Arsenic poisoning harms the body by

Accepted Answer

A)   unraveling the DNA double helix.
B)   interfering with cellular extraction of energy from glucose.
C)   forming more sulfur bonds in proteins.
D)   rotting the teeth.E) All of the above
F) A) and D)

Question 6

In cellular respiration,

Accepted Answer

A)   mitochondria release glucose molecules.
B)   energy is released from molecules and is transferred to other molecules.
C)   cells breathe, or take in, O2 and give off CO2.
D)   energy is absorbed from glucose and is transferred to CO2.E) A) and B)
F) B) and C)

Question 7

In dehydration synthesis of a carbohydrate,

Accepted Answer

A)   larger molecules are decomposed into smaller ones.
B)   monosaccharides are joined.
C)   water molecules bond to monosaccharide molecules.
D)   the molecule is decomposed into carbon dioxide and water.E) A) and B)
F) All of the above

Question 8

A part of a gene that is a DNA sequence 333 nucleotides long encodes ___ amino acids.

Accepted Answer

A)   333
B)   111
C)   999
D)   444E) None of the above
F) A) and C)

Question 9

The two strands of a DNA molecule have opposite orientation.

Accepted Answer

A) True 
 B)False

Question 10

Genetic information is contained in protein molecules and is passed from one parent to another.

Accepted Answer

A) True 
 B)False

Question 11

Mutagens are factors that cause mutation.

Accepted Answer

A) True 
 B)False

Question 12

DNA replication occurs

Accepted Answer

A)   when a cell requires energy.
B)   outside of the nucleus.
C)   during interphase of the cell cycle.
D)   during mitosis.E) All of the above
F) A) and B)

Question 13

During DNA replication,

Accepted Answer

A)   tRNAs bring specific amino acids to an mRNA molecule.
B)   two single strands of DNA come together, restoring complementary base pairing.
C)   amino acids are joined.
D)   the DNA double helix comes apart where hydrogen bonds join base pairs, and new nucleotides are brought in, forming two double helices.E) B) and D)
F) A) and D)

Question 14

The complete set of genetic instructions in an individual is the ______.

Accepted Answer

The answer of The complete set of genetic instructions in...

Question 15

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) A) and D)

Question 16

Catabolism builds up molecules and anabolism breaks down molecules.

Accepted Answer

A) True 
 B)False

Question 17

What is the function of ATP molecules in living cells?

Accepted Answer

A)   They form a genetic material.
B)   They capture energy from the oxidation of fuels in their high-energy phosphate bonds, and the energy is used in various cell processes.
C)   They act as coenzymes so that fats can be synthesized.
D)   They are an integral part of the cell membrane, important in transporting water molecules.E) B) and C)
F) A) and B)

Exam 4: Cellular Metabolism

The complete set of genetic instructions in an individual is the ______.

Correct Answer
verified

A part of a gene that is a DNA sequence 333 nucleotides long encodes ___ amino acids.

Correct Answer
verified

Which of the following best describes the interaction between an enzyme and its substrate?

Correct Answer
verified

The genetic code is the correspondence between DNA sequence and amino acid sequence of a protein.

Correct Answer
verified

Each individual has her or his own genetic code.

Correct Answer
verified

What is the function of ATP molecules in living cells?

Correct Answer
verified

During DNA replication,

Correct Answer
verified

The basic steps of an enzyme-catalyzed reaction are:

Correct Answer
verified

The two strands of a DNA molecule have opposite orientation.

Correct Answer
verified

Genetic information is contained in protein molecules and is passed from one parent to another.

Correct Answer
verified

In cellular respiration,

Correct Answer
verified

DNA replication occurs

Correct Answer
verified

Arsenic poisoning harms the body by

Correct Answer
verified

Mutagens are factors that cause mutation.

Correct Answer
verified

In dehydration synthesis of a carbohydrate,

Correct Answer
verified

Catabolism builds up molecules and anabolism breaks down molecules.

Correct Answer
verified

The molecule that an enzyme affects is its _________.

Correct Answer
verified

Exam 4: Cellular Metabolism

The complete set of genetic instructions in an individual is the ______.

Correct AnswerverifiedShow Answer

A part of a gene that is a DNA sequence 333 nucleotides long encodes ___ amino acids.

Correct AnswerverifiedShow Answer

Which of the following best describes the interaction between an enzyme and its substrate?

Correct AnswerverifiedShow Answer

The genetic code is the correspondence between DNA sequence and amino acid sequence of a protein.

Correct AnswerverifiedShow Answer

Each individual has her or his own genetic code.

Correct AnswerverifiedShow Answer

What is the function of ATP molecules in living cells?

Correct AnswerverifiedShow Answer

During DNA replication,

Correct AnswerverifiedShow Answer

The basic steps of an enzyme-catalyzed reaction are:

Correct AnswerverifiedShow Answer

The two strands of a DNA molecule have opposite orientation.

Correct AnswerverifiedShow Answer

Genetic information is contained in protein molecules and is passed from one parent to another.

Correct AnswerverifiedShow Answer

In cellular respiration,

Correct AnswerverifiedShow Answer

DNA replication occurs

Correct AnswerverifiedShow Answer

Arsenic poisoning harms the body by

Correct AnswerverifiedShow Answer

Mutagens are factors that cause mutation.

Correct AnswerverifiedShow Answer

In dehydration synthesis of a carbohydrate,

Correct AnswerverifiedShow Answer

Catabolism builds up molecules and anabolism breaks down molecules.

Correct AnswerverifiedShow Answer

The molecule that an enzyme affects is its _________.

Correct AnswerverifiedShow Answer

Correct Answer
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