Question 1

The enzyme catalase acts on the substrate

Accepted Answer

A)  oxygen. 
B)  hydrogen. 
C)  hydrogen peroxide. 
D)  peroxidase. 
E)  cholesterol. 
A)  oxygen. 
B)  hydrogen. 
C)  hydrogen peroxide. 
D)  peroxidase. 
E)  cholesterol.

Question 2

A sucrose molecule decomposing to yield a glucose molecule and a fructose molecule

Accepted Answer

A)  is an example of dehydration synthesis. 
B)  releases a water molecule. 
C)  uses a water molecule. 
D)  only occurs if a person follows a high carbohydrate diet. 
E)  can also decompose to yield two glucose molecules. 
A)  is an example of dehydration synthesis. 
B)  releases a water molecule. 
C)  uses a water molecule. 
D)  only occurs if a person follows a high carbohydrate diet. 
E)  can also decompose to yield two glucose molecules.

Question 3

Which of the following substances becomes more abundant during cellular respiration?

Accepted Answer

A)  oxygen 
B)  glucose 
C)  sucrose 
D)  glycogen 
E)  ATP 
A)  oxygen 
B)  glucose 
C)  sucrose 
D)  glycogen 
E)  ATP

Question 4

Most metabolic processes use chemical energy.

Accepted Answer

A) True 
 B)False

Question 5

An ATP molecule consists of an adenine,a ribose and three phosphates.

Accepted Answer

A) True 
 B)False

Question 6

A rate-limiting enzyme is typically the first enzyme in a series.This position is important because

Accepted Answer

A)  if the reaction stops,the enzyme will have a chance to act. 
B)  the first enzyme is the fastest in the pathway. 
C)  the enzymes lose energy farther along the metabolic pathway. 
D)  a rate-limiting enzyme that acts later in the pathway could lead to build-up of an intermediate chemical. 
E)  the enzyme is destroyed farther along the pathway. 
A)  if the reaction stops,the enzyme will have a chance to act. 
B)  the first enzyme is the fastest in the pathway. 
C)  the enzymes lose energy farther along the metabolic pathway. 
D)  a rate-limiting enzyme that acts later in the pathway could lead to build-up of an intermediate chemical. 
E)  the enzyme is destroyed farther along the pathway.

Question 7

The reactions of anaerobic respiration occur in the

Accepted Answer

A)  cytosol. 
B)  mitochondria. 
C)  nucleus. 
D)  Golgi apparatus. 
E)  vesicles. 
A)  cytosol. 
B)  mitochondria. 
C)  nucleus. 
D)  Golgi apparatus. 
E)  vesicles.

Question 8

Genes carry information that instructs a cell to

Accepted Answer

A)  make glycogen. 
B)  make specific proteins from amino acids. 
C)  use energy. 
D)  convert nucleic acids into proteins. 
E)  take in proteins from the cell membrane. 
A)  make glycogen. 
B)  make specific proteins from amino acids. 
C)  use energy. 
D)  convert nucleic acids into proteins. 
E)  take in proteins from the cell membrane.

Question 9

A DNA molecule

Accepted Answer

A)  is twisted into a triple helix. 
B)  is composed of joined nucleotides. 
C)  is single-stranded. 
D)  contains RNA. 
E)  is globular shaped. 
A)  is twisted into a triple helix. 
B)  is composed of joined nucleotides. 
C)  is single-stranded. 
D)  contains RNA. 
E)  is globular shaped.

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

Glycolysis is referred to as the ____________ phase of cellular respiration because it does not require oxygen.

Accepted Answer

A)  anaerobic 
B)  aerobic 
C)  probiotic 
D)  pyruvic 
E)  deoxygenic 
A)  anaerobic 
B)  aerobic 
C)  probiotic 
D)  pyruvic 
E)  deoxygenic

Question 12

The transfer of genetic information from the nucleus into the cytoplasm is a function of

Accepted Answer

A)  DNA molecules. 
B)  ribosomal RNA. 
C)  messenger RNA. 
D)  transfer RNA. 
E)  the energy level of the cell. 
A)  DNA molecules. 
B)  ribosomal RNA. 
C)  messenger RNA. 
D)  transfer RNA. 
E)  the energy level of the cell.

Question 13

During protein synthesis,amino acids are positioned in the proper sequence by molecules of

Accepted Answer

A)  ribosomal RNA. 
B)  transfer RNA. 
C)  messenger RNA. 
D)  nuclear RNA. 
E)  DNA. 
A)  ribosomal RNA. 
B)  transfer RNA. 
C)  messenger RNA. 
D)  nuclear RNA. 
E)  DNA.

Question 14

An ATP molecule that loses its terminal phosphate becomes

Accepted Answer

A)  AMP. 
B)  cyclic AMP. 
C)  a glucose molecule. 
D)  ADP. 
E)  an activated ATP. 
A)  AMP. 
B)  cyclic AMP. 
C)  a glucose molecule. 
D)  ADP. 
E)  an activated ATP.

The enzyme catalase acts on the substrate

A sucrose molecule decomposing to yield a glucose molecule and a fructose molecule

Which of the following substances becomes more abundant during cellular respiration?

Most metabolic processes use chemical energy.

An ATP molecule consists of an adenine,a ribose and three phosphates.

A rate-limiting enzyme is typically the first enzyme in a series.This position is important because

The reactions of anaerobic respiration occur in the

Genes carry information that instructs a cell to

A DNA molecule

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

Glycolysis is referred to as the ____________ phase of cellular respiration because it does not require oxygen.

The transfer of genetic information from the nucleus into the cytoplasm is a function of

During protein synthesis,amino acids are positioned in the proper sequence by molecules of

An ATP molecule that loses its terminal phosphate becomes

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

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Integumentary System

Skeletal System

Muscular System

Nervous System

The Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

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Urinary System

Water, electrolyte, and Acid-Base Balance

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Pregnancy, growth, development, and Genetics

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Exam 4: Cellular Metabolism

The enzyme catalase acts on the substrate

A sucrose molecule decomposing to yield a glucose molecule and a fructose molecule

Which of the following substances becomes more abundant during cellular respiration?

Most metabolic processes use chemical energy.

An ATP molecule consists of an adenine,a ribose and three phosphates.

A rate-limiting enzyme is typically the first enzyme in a series.This position is important because

The reactions of anaerobic respiration occur in the

Genes carry information that instructs a cell to

A DNA molecule

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

Glycolysis is referred to as the ____________ phase of cellular respiration because it does not require oxygen.

The transfer of genetic information from the nucleus into the cytoplasm is a function of

During protein synthesis,amino acids are positioned in the proper sequence by molecules of

An ATP molecule that loses its terminal phosphate becomes

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Tissues

Integumentary System

Skeletal System

Muscular System

Nervous System

The Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System and Nutrition

Respiratory System

Urinary System

Water, electrolyte, and Acid-Base Balance

Reproductive Systems

Pregnancy, growth, development, and Genetics

Filters