Question 1

What is the building block molecule of a protein?

Accepted Answer

A)  monosaccharide 
B)  amino acid 
C)  nucleic acid 
D)  fatty acid 
E)  glycerol 
A)  monosaccharide 
B)  amino acid 
C)  nucleic acid 
D)  fatty acid 
E)  glycerol

Question 2

Large carbohydrates are formed from smaller units called

Accepted Answer

A)  lipids. 
B)  phosphate groups. 
C)  amino acids. 
D)  monosaccharides. 
E)  steroids. 
A)  lipids. 
B)  phosphate groups. 
C)  amino acids. 
D)  monosaccharides. 
E)  steroids.

Question 3

Which of the following is determined by sequence of amino acids bound by peptide bonds?

Accepted Answer

A)  primary structure of protein 
B)  secondary structure of protein 
C)  amino acid 
D)  denaturation 
E)  peptide bond 
A)  primary structure of protein 
B)  secondary structure of protein 
C)  amino acid 
D)  denaturation 
E)  peptide bond

Question 4

Enzymes are proteins that increase the rate of chemical reactions by

Accepted Answer

A)  increasing the activation energy of the reaction. 
B)  increasing the concentration of the reactants. 
C)  decreasing the activation energy of the reaction. 
D)  adjusting the temperature of the reaction. 
A)  increasing the activation energy of the reaction. 
B)  increasing the concentration of the reactants. 
C)  decreasing the activation energy of the reaction. 
D)  adjusting the temperature of the reaction.

Question 5

Hydrogen bonds form between molecules containing _________ bonds; the hydrogen bond is between a hydrogen atom of one molecule and a partially _________ charged atom of another.

Accepted Answer

A)  polar covalent; negatively 
B)  nonpolar covalent; negatively 
C)  nonpolar covalent; positively 
D)  polar covalent; positively 
E)  ionic; positively 
A)  polar covalent; negatively 
B)  nonpolar covalent; negatively 
C)  nonpolar covalent; positively 
D)  polar covalent; positively 
E)  ionic; positively

Question 6

-The sodium chloride molecule breaks apart in water. What does "D" represent?

Accepted Answer

A)  chloride ion 
B)  dissociation 
C)  water molecule 
D)  sodium ion 
E)  salt crystal 
A)  chloride ion 
B)  dissociation 
C)  water molecule 
D)  sodium ion 
E)  salt crystal

Question 7

A solution that contains one osmole of solute in one kilogram (kg) of water is called a

Accepted Answer

A)  1% solution. 
B)  1 molar solution. 
C)  10% solution. 
D)  1 osmolal solution. 
E)  None of these choices are correct. 
A)  1% solution. 
B)  1 molar solution. 
C)  10% solution. 
D)  1 osmolal solution. 
E)  None of these choices are correct.

Question 8

An atom has an atomic number of 19 and a mass number of 39. This atom will have

Accepted Answer

A)  19 neutrons. 
B)  39 neutrons. 
C)  20 electrons. 
D)  20 neutrons. 
E)  58 neutrons. 
A)  19 neutrons. 
B)  39 neutrons. 
C)  20 electrons. 
D)  20 neutrons. 
E)  58 neutrons.

What is the building block molecule of a protein?

Large carbohydrates are formed from smaller units called

Which of the following is determined by sequence of amino acids bound by peptide bonds?

Enzymes are proteins that increase the rate of chemical reactions by

Hydrogen bonds form between molecules containing _ bonds; the hydrogen bond is between a hydrogen atom of one molecule and a partially _ charged atom of another.

-The sodium chloride molecule breaks apart in water. What does "D" represent?

A solution that contains one osmole of solute in one kilogram (kg) of water is called a

An atom has an atomic number of 19 and a mass number of 39. This atom will have

The Human Organism

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters

Exam 2: The Chemical Basis of Life

What is the building block molecule of a protein?

Large carbohydrates are formed from smaller units called

Which of the following is determined by sequence of amino acids bound by peptide bonds?

Enzymes are proteins that increase the rate of chemical reactions by

Hydrogen bonds form between molecules containing _________ bonds; the hydrogen bond is between a hydrogen atom of one molecule and a partially _________ charged atom of another.

-The sodium chloride molecule breaks apart in water. What does "D" represent?

A solution that contains one osmole of solute in one kilogram (kg) of water is called a

An atom has an atomic number of 19 and a mass number of 39. This atom will have

The Human Organism

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters

Hydrogen bonds form between molecules containing _ bonds; the hydrogen bond is between a hydrogen atom of one molecule and a partially _ charged atom of another.