Question 1

A covalent bond is formed between two molecules when they share

Accepted Answer

A)  atoms. 
B)  electrons. 
C)  neutrons. 
D)  protons. 
A)  atoms. 
B)  electrons. 
C)  neutrons. 
D)  protons. B

Question 2

In a mixture the component that is present in the greatest amount is the

Accepted Answer

A)  solute. 
B)  solution. 
C)  solvent. 
D)  suspension. 
A)  solute. 
B)  solution. 
C)  solvent. 
D)  suspension. C

Question 3

The energy source for cells of the body to function properly is stored in and released by

Accepted Answer

A)  ADA. 
B)  ALT. 
C)  AST. 
D)  ATP. 
A)  ADA. 
B)  ALT. 
C)  AST. 
D)  ATP. D

Question 4

A saturated fatty acid is defined as

Accepted Answer

A)  a chain of carbon atoms with one or two hydrogen atoms attached to each carbon atom by a single bond. 
B)  a chain of carbon atoms with one or two hydrogen atoms attached to each carbon atom by double or single bonds. 
C)  a chain of hydrogen atoms with one or two carbon atoms attached to each hydrogen atom by a single bond. 
D)  a chain of hydrogen atoms with one or two carbon atoms attached to each hydrogen atom by single or double bonds. 
A)  a chain of carbon atoms with one or two hydrogen atoms attached to each carbon atom by a single bond. 
B)  a chain of carbon atoms with one or two hydrogen atoms attached to each carbon atom by double or single bonds. 
C)  a chain of hydrogen atoms with one or two carbon atoms attached to each hydrogen atom by a single bond. 
D)  a chain of hydrogen atoms with one or two carbon atoms attached to each hydrogen atom by single or double bonds.

Question 5

A sequence of nucleotides that carries information to make one peptide chain is a/an

Accepted Answer

A)  amino acid. 
B)  chromosome. 
C)  gene. 
D)  ribosome. 
A)  amino acid. 
B)  chromosome. 
C)  gene. 
D)  ribosome.

Question 6

The smallest unit of a compound that retains the properties of that compound is a/an

Accepted Answer

A)  atom. 
B)  ion. 
C)  isotope. 
D)  molecule. 
A)  atom. 
B)  ion. 
C)  isotope. 
D)  molecule.

Question 7

Which group of lipids contains prostaglandins that help mediate an inflammatory reaction?

Accepted Answer

A)  eicosanoids 
B)  neutral fats 
C)  phospholipids 
D)  steroids 
A)  eicosanoids 
B)  neutral fats 
C)  phospholipids 
D)  steroids

Question 8

Triglycerides are

Accepted Answer

A)  eicosanoids. 
B)  neutral fats. 
C)  phospholipids. 
D)  steroids. 
A)  eicosanoids. 
B)  neutral fats. 
C)  phospholipids. 
D)  steroids.

Question 9

A polypeptide can be made up of a chain of as many as __ amino acids.

Accepted Answer

A)  10 
B)  100 
C)  250 
D)  66 
A)  10 
B)  100 
C)  250 
D)  66

Question 10

An ion with a positive charge is a/an

Accepted Answer

A)  anion. 
B)  cation. 
C)  electron. 
D)  proton. 
A)  anion. 
B)  cation. 
C)  electron. 
D)  proton.

Question 11

Cholesterol is classified as what type of lipid?

Accepted Answer

A)  eicosanoid 
B)  neutral fat 
C)  phospholipid 
D)  steroid 
A)  eicosanoid 
B)  neutral fat 
C)  phospholipid 
D)  steroid

Question 12

Electrolytes are __

Accepted Answer

A)  anabolic compounds. 
B)  catalysts. 
C)  ionized salts. 
D)  organic compounds. 
A)  anabolic compounds. 
B)  catalysts. 
C)  ionized salts. 
D)  organic compounds.

Question 13

A monosaccharide contains which three atoms?

Accepted Answer

A)  calcium, hydrogen, oxygen 
B)  carbon, oxygen, hydrogen 
C)  hydrogen, carbon, phosphorous 
D)  phosphorous, calcium, carbon 
A)  calcium, hydrogen, oxygen 
B)  carbon, oxygen, hydrogen 
C)  hydrogen, carbon, phosphorous 
D)  phosphorous, calcium, carbon

Question 14

Which group of lipids is characterized by a lipid bilayer?

Accepted Answer

A)  eicosanoids 
B)  neutral fats 
C)  phospholipids 
D)  steroids 
A)  eicosanoids 
B)  neutral fats 
C)  phospholipids 
D)  steroids

Question 15

Which group of lipids is made up of a glycerol molecule and three fatty acids?

Accepted Answer

A)  eicosanoids 
B)  neutral fats 
C)  phospholipids 
D)  steroids 
A)  eicosanoids 
B)  neutral fats 
C)  phospholipids 
D)  steroids

Question 16

The double helix configuration is characteristic of

Accepted Answer

A)  chromosomes. 
B)  DNA. 
C)  genes. 
D)  RNA. 
A)  chromosomes. 
B)  DNA. 
C)  genes. 
D)  RNA.

Question 17

All proteins contain

Accepted Answer

A)  carbon, oxygen, nitrogen, and hydrogen. 
B)  hydrogen, iron, phosphorous, and carbon. 
C)  iron, carbon, sulphur, and hydrogen. 
D)  oxygen, nitrogen, hydrogen, and sulphur. 
A)  carbon, oxygen, nitrogen, and hydrogen. 
B)  hydrogen, iron, phosphorous, and carbon. 
C)  iron, carbon, sulphur, and hydrogen. 
D)  oxygen, nitrogen, hydrogen, and sulphur.

Question 18

An example of an organic compound is

Accepted Answer

A)  ammonia. 
B)  carbohydrate. 
C)  sodium chloride. 
D)  water. 
A)  ammonia. 
B)  carbohydrate. 
C)  sodium chloride. 
D)  water.

Question 19

A/An __ is formed when an atom gains or loses an electron.

Accepted Answer

A)  ion 
B)  isotope 
C)  molecule 
D)  neutron 
A)  ion 
B)  isotope 
C)  molecule 
D)  neutron

Question 20

A substance that ionizes when added to water and releases a hydroxyl ion (OH S1U1P1-S1S1P0) is a/an

Accepted Answer

A)  acid. 
B)  base. 
C)  electrolyte. 
D)  solute. 
A)  acid. 
B)  base. 
C)  electrolyte. 
D)  solute.

Exam 2: Chemical Basis for Life

A covalent bond is formed between two molecules when they share

In a mixture the component that is present in the greatest amount is the

The energy source for cells of the body to function properly is stored in and released by

A saturated fatty acid is defined as

A sequence of nucleotides that carries information to make one peptide chain is a/an

The smallest unit of a compound that retains the properties of that compound is a/an

Which group of lipids contains prostaglandins that help mediate an inflammatory reaction?

Triglycerides are

A polypeptide can be made up of a chain of as many as __ amino acids.

An ion with a positive charge is a/an

Cholesterol is classified as what type of lipid?

Electrolytes are __

A monosaccharide contains which three atoms?

Which group of lipids is characterized by a lipid bilayer?

Which group of lipids is made up of a glycerol molecule and three fatty acids?

The double helix configuration is characteristic of

All proteins contain

An example of an organic compound is

A/An __ is formed when an atom gains or loses an electron.

A substance that ionizes when added to water and releases a hydroxyl ion (OH -) is a/an

Introduction to Anatomy and Physiology

Amphibian and Reptilian Anatomy and Physiology

Anatomical Structure of the Cell

Physiology of the Cell

Tissues

Integumentary System

Skeletal System

Muscular System

Nervous System

Sense Organs

Endocrine System

Blood, Lymph, and Lymph Nodes

Immunity and Defense

The Cardiovascular System

Respiratory System

Digestive System

Nutrients and Metabolism

Urinary System

Reproductive System

Pregnancy, Development, and Lactation

Avian Anatomy and Physiology

Filters

A substance that ionizes when added to water and releases a hydroxyl ion (OH ^-) is a/an