Question 1

This is not a characteristic of an electron:

Accepted Answer

A)  is in an orbital around the nucleus of the atom 
B)  has a negative electrical charge 
C)  contributes to the atom's atomic number 
D)  all of the above are characteristics of an electron 
A)  is in an orbital around the nucleus of the atom 
B)  has a negative electrical charge 
C)  contributes to the atom's atomic number 
D)  all of the above are characteristics of an electron

Question 2

Hydrolysis is virtually the reverse of a dehydration synthesis reaction.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following statements is true?

Accepted Answer

A)  The process of hydrolysis is used to build a larger molecule from smaller molecules. 
B)  Water is an end product of a hydrolysis reaction. 
C)  The process of dehydration synthesis is used to build a larger molecule from smaller molecules. 
D)  Water is a reactant in a dehydration synthesis reaction. 
A)  The process of hydrolysis is used to build a larger molecule from smaller molecules. 
B)  Water is an end product of a hydrolysis reaction. 
C)  The process of dehydration synthesis is used to build a larger molecule from smaller molecules. 
D)  Water is a reactant in a dehydration synthesis reaction.

Question 4

Which of the following is not true of cholesterol?

Accepted Answer

A)  It is a steroid lipid. 
B)  It helps stabilize the cell membrane. 
C)  It contains only two fatty acids. 
D)  It is the starting point for making the hormone estrogen. 
A)  It is a steroid lipid. 
B)  It helps stabilize the cell membrane. 
C)  It contains only two fatty acids. 
D)  It is the starting point for making the hormone estrogen.

Question 5

Both phospholipids and cholesterol are structural components of the cell membrane.

Accepted Answer

A) True 
 B)False

Question 6

Match the term with the definition or explanation.
-This nucleic acid has uracil as one of its nitrogen bases.

Accepted Answer

A) Glucose 
B) Enzyme 
C) Triglyceride 
D) Glycogen 
E) Cholesterol
F)Adenosine triphosphate
G)RNA
H)Phospholipids
I)Collagen
J)DNA 
A) Glucose 
B) Enzyme 
C) Triglyceride 
D) Glycogen 
E) Cholesterol
F)Adenosine triphosphate
G)RNA
H)Phospholipids
I)Collagen
J)DNA

Question 7

Match the term with its definition or explanation.
-A subatomic particle with no charge

Accepted Answer

A) Proton 
B) Electron 
C) Neutron 
D) Atomic mass 
E) Atomic number
F)Element
G)Compound
H)Hydrolysis
I)Acid
J)Base
K)Covalent bond
L)Ionic bond
M)Water
N)Buffer
O)Electrolytes
P)Dehydration synthesis 
A) Proton 
B) Electron 
C) Neutron 
D) Atomic mass 
E) Atomic number
F)Element
G)Compound
H)Hydrolysis
I)Acid
J)Base
K)Covalent bond
L)Ionic bond
M)Water
N)Buffer
O)Electrolytes
P)Dehydration synthesis

Question 8

Which of the following is a polysaccharide?

Accepted Answer

A)  Glucose 
B)  Lactose 
C)  Sucrose 
D)  Glycogen 
A)  Glucose 
B)  Lactose 
C)  Sucrose 
D)  Glycogen

Question 9

Match the term with its definition or explanation.
-A substance that resists a change in pH

Accepted Answer

A) Proton 
B) Electron 
C) Neutron 
D) Atomic mass 
E) Atomic number
F)Element
G)Compound
H)Hydrolysis
I)Acid
J)Base
K)Covalent bond
L)Ionic bond
M)Water
N)Buffer
O)Electrolytes
P)Dehydration synthesis 
A) Proton 
B) Electron 
C) Neutron 
D) Atomic mass 
E) Atomic number
F)Element
G)Compound
H)Hydrolysis
I)Acid
J)Base
K)Covalent bond
L)Ionic bond
M)Water
N)Buffer
O)Electrolytes
P)Dehydration synthesis

Question 10

An electron in the third energy level is closer to the nucleus than an electron in the second energy level.

Accepted Answer

A) True 
 B)False

Question 11

Adenosine triphosphate is a modified nucleotide that is important in energy transfer in the body.

Accepted Answer

A) True 
 B)False

Question 12

The elements sodium,oxygen,hydrogen,and nitrogen make up 96% of the human body.

Accepted Answer

A) True 
 B)False

Question 13

An atom's atomic number is usually greater than its mass number.

Accepted Answer

A) True 
 B)False

Question 14

The bond between carbon and hydrogen in an organic compound is an example of a covalent bond.

Accepted Answer

A) True 
 B)False

Question 15

Both sucrose and lactose are monosaccharides.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following lipids are used as starting points in the making of hormones?

Accepted Answer

A)  Phospholipids 
B)  Cholesterol 
C)  Triglycerides 
D)  Both b and c above 
A)  Phospholipids 
B)  Cholesterol 
C)  Triglycerides 
D)  Both b and c above

Question 17

A formula of a compound tells you the number and types of elements that make up that compound.

Accepted Answer

A) True 
 B)False

Question 18

In a dehydration synthesis reaction:

Accepted Answer

A)  water is a reactant 
B)  water is a product 
C)  a large molecule is broken down into a smaller one 
D)  both a and c above 
A)  water is a reactant 
B)  water is a product 
C)  a large molecule is broken down into a smaller one 
D)  both a and c above

Question 19

Describe the three ways in which the body can regulate the removal of H⁺ ions or a sudden change in pH.

Accepted Answer

The body can regulate the removal of H⁺

Question 20

All energy levels of an atom can hold four orbitals.

Accepted Answer

A) True 
 B)False

Exam 2: Chemistry of Life

This is not a characteristic of an electron:

Hydrolysis is virtually the reverse of a dehydration synthesis reaction.

Which of the following statements is true?

Which of the following is not true of cholesterol?

Both phospholipids and cholesterol are structural components of the cell membrane.

Match the term with the definition or explanation. -This nucleic acid has uracil as one of its nitrogen bases.

Match the term with its definition or explanation. -A subatomic particle with no charge

Which of the following is a polysaccharide?

Match the term with its definition or explanation. -A substance that resists a change in pH

An electron in the third energy level is closer to the nucleus than an electron in the second energy level.

Adenosine triphosphate is a modified nucleotide that is important in energy transfer in the body.

The elements sodium,oxygen,hydrogen,and nitrogen make up 96% of the human body.

An atom's atomic number is usually greater than its mass number.

The bond between carbon and hydrogen in an organic compound is an example of a covalent bond.

Both sucrose and lactose are monosaccharides.

Which of the following lipids are used as starting points in the making of hormones?

A formula of a compound tells you the number and types of elements that make up that compound.

In a dehydration synthesis reaction:

Describe the three ways in which the body can regulate the removal of H⁺ ions or a sudden change in pH.

All energy levels of an atom can hold four orbitals.

Introduction to the Body

Cells

Tissues

Organ Systems

Skin and Membranes

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Reproductive Systems

Growth and Development

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