Question 1

The part of the tRNA that binds mRNA is the anticodon.

Accepted Answer

A) True 
 B)False

Question 2

A mutation may occur spontaneously or by exposure to a mutagen.

Accepted Answer

A) True 
 B)False

Question 3

Anaerobic and aerobic respiration begin with _______, in which glucose is broken down.

Accepted Answer

The answer of Anaerobic and aerobic respiration begin with _______,...

Question 4

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 5

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

Accepted Answer

A) True 
 B)False

Question 6

The process that extracts energy from glucose and makes it available is cellular ________.

Accepted Answer

The answer of The process that extracts energy from glucose...

Question 7

The metabolome includes

Accepted Answer

A)  all of the genes that encode protein in the genome. 
B)  the DNA that does not encode protein in the genome. 
C)  all of the small molecules that are part of metabolism. 
D)  all of the enzymes that take part in aerobic respiration. 
A)  all of the genes that encode protein in the genome. 
B)  the DNA that does not encode protein in the genome. 
C)  all of the small molecules that are part of metabolism. 
D)  all of the enzymes that take part in aerobic respiration.

Question 8

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

Question 9

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. 
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.

Question 10

A DNA molecule is a double helix in which A pairs with C and T pairs with
G.

Accepted Answer

A) True 
 B)False

Question 11

An enzyme is

Accepted Answer

A)  a molecule, usually a protein, that speeds the rate of a biochemical reaction by lowering the activation energy. 
B)  the genetic material. 
C)  a protein that promotes metabolic reactions by slowing reactions that are too fast. 
D)  usually a vitamin. 
A)  a molecule, usually a protein, that speeds the rate of a biochemical reaction by lowering the activation energy. 
B)  the genetic material. 
C)  a protein that promotes metabolic reactions by slowing reactions that are too fast. 
D)  usually a vitamin.

Question 12

A mutation is

Accepted Answer

A)  a change in a DNA sequence in less than 1% of a population that affects anatomy and/or physiology. 
B)  a common genetic variant. 
C)  always beneficial to health. 
D)  always harmful to health. 
A)  a change in a DNA sequence in less than 1% of a population that affects anatomy and/or physiology. 
B)  a common genetic variant. 
C)  always beneficial to health. 
D)  always harmful to health.

Question 13

During the anaerobic reactions of cellular respiration, pyruvic acid reacts to form glucose.

Accepted Answer

A) True 
 B)False

Question 14

How many codons specify the twenty types of amino acids?

Accepted Answer

A)  61 
B)  23 
C)  46 
D)  3 
A)  61 
B)  23 
C)  46 
D)  3

Question 15

In DNA replication, the two halves of the double helix separate and enzymes place A, C, G, and U nucleotides opposite their complements, forming two double helices from one.

Accepted Answer

A) True 
 B)False

Question 16

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 17

Enzymes are proteins that promote specific chemical reactions.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is not a characteristic of enzymes?

Accepted Answer

A)  They speed up the rate of chemical reactions but are not used up in the process. 
B)  Most are proteins. 
C)  They are most active at temperatures above 53 degrees C. 
D)  They have active sites and interact with specific substrates. 
A)  They speed up the rate of chemical reactions but are not used up in the process. 
B)  Most are proteins. 
C)  They are most active at temperatures above 53 degrees C. 
D)  They have active sites and interact with specific substrates.

Question 19

An active site of an enzyme is

Accepted Answer

A)  the part of the enzyme that binds ATP. 
B)  a sequence of DNA nucleotides that encodes a protein molecule. 
C)  the part of a substrate that combines with an enzyme. 
D)  the part of an enzyme that combines with a substrate. 
A)  the part of the enzyme that binds ATP. 
B)  a sequence of DNA nucleotides that encodes a protein molecule. 
C)  the part of a substrate that combines with an enzyme. 
D)  the part of an enzyme that combines with a substrate.

Question 20

In adipose tissue, fat molecules form when fatty acid molecules and glycerol join by hydrolysis.

Accepted Answer

A) True 
 B)False

Exam 4: Cellular Metabolism

The part of the tRNA that binds mRNA is the anticodon.

A mutation may occur spontaneously or by exposure to a mutagen.

Anaerobic and aerobic respiration begin with _______, in which glucose is broken down.

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

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

The process that extracts energy from glucose and makes it available is cellular ________.

The metabolome includes

"Catabolism" refers to

A mutation can cause disease if

A DNA molecule is a double helix in which A pairs with C and T pairs with G.

An enzyme is

A mutation is

During the anaerobic reactions of cellular respiration, pyruvic acid reacts to form glucose.

How many codons specify the twenty types of amino acids?

In DNA replication, the two halves of the double helix separate and enzymes place A, C, G, and U nucleotides opposite their complements, forming two double helices from one.

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

Enzymes are proteins that promote specific chemical reactions.

Which of the following is not a characteristic of enzymes?

An active site of an enzyme is

In adipose tissue, fat molecules form when fatty acid molecules and glycerol join by hydrolysis.

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

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