Question 1

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. 
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.

Question 2

Dehydration synthesis is catabolic and hydrolysis is anabolic.

Accepted Answer

A) True 
 B)False

Question 3

The synthesis of an ATP molecule requires two ADP molecules.

Accepted Answer

A) True 
 B)False

Question 4

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. 
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.

Question 5

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

Question 6

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. 
A)  dehydration synthesis occurs. 
B)  a water molecule is released. 
C)  a water molecule is used. 
D)  starch is consumed.

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A)  Cytosine 
B)  Thymine 
C)  Guanine 
D)  Uracil 
A)  Cytosine 
B)  Thymine 
C)  Guanine 
D)  Uracil

Question 9

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. 
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.

Question 10

A substance that causes a mutation is called a __________.

Accepted Answer

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

Question 11

"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. 
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.

Question 12

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 correct 
A)  TAGCTGTCAACAGTGATA 
B)  TAACTGTCGACGGTGATG 
C)  TAACTAAGTACGGTGATG 
D)  All of the answer choices are correct

Question 13

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

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

Three types of RNA participate in protein synthesis.

Accepted Answer

A) True 
 B)False

Question 17

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. 
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.

Question 18

A molecule that is a storage form of carbohydrate is

Accepted Answer

A)  glycogen. 
B)  glycerol. 
C)  DNA. 
D)  an amino acid. 
A)  glycogen. 
B)  glycerol. 
C)  DNA. 
D)  an amino acid.

Question 19

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. 
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.

Question 20

Transcription yields protein and translation produces RNA.

Accepted Answer

A) True 
 B)False

Exam 4: Cellular Metabolism

Anaerobic reactions of cellular respiration

Dehydration synthesis is catabolic and hydrolysis is anabolic.

The synthesis of an ATP molecule requires two ADP molecules.

Transcription and translation differ in that

An important mechanism that controls metabolic pathways under physiological conditions is

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

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

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

Energy is defined as

A substance that causes a mutation is called a __________.

"Metabolism" refers to

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

A peptide bond forms between

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

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

Three types of RNA participate in protein synthesis.

A chaperone protein

A molecule that is a storage form of carbohydrate is

ATP is important to cellular processes because it

Transcription yields protein and translation produces RNA.

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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