Question 1

Match the name of the element with the correct symbol.
-Ca

Accepted Answer

A) Potassium 
B) Phosphorus 
C) Sodium 
D) Calcium 
E) Carbon
F)Hydrogen
G)Chlorine
H)Nitrogen 
A) Potassium 
B) Phosphorus 
C) Sodium 
D) Calcium 
E) Carbon
F)Hydrogen
G)Chlorine
H)Nitrogen

Question 2

The word carbohydrate literally means "sugar."

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is not true of phospholipids?

Accepted Answer

A)  The molecule contains three fatty acids. 
B)  The molecule has a water-attracting part. 
C)  The molecule has a water-repelling part. 
D)  It is important in the structure of the cell membrane. 
A)  The molecule contains three fatty acids. 
B)  The molecule has a water-attracting part. 
C)  The molecule has a water-repelling part. 
D)  It is important in the structure of the cell membrane.

Question 4

Bases produce an excess of OH- ions.

Accepted Answer

A) True 
 B)False

Question 5

All compounds in the human body are,by definition,organic compounds.

Accepted Answer

A) True 
 B)False

Question 6

Both DNA and RNA contain a sugar molecule as part of their structure.

Accepted Answer

A) True 
 B)False

Question 7

List the three types of lipids in the body and describe the structure and function of each.

Accepted Answer

The three types of lipids in the body ar

Question 8

Describe the types of carbohydrates.What are the two large molecules that can store carbohydrates?

Accepted Answer

Carbohydrates can be classified into two

Question 9

If a strong acid were added to one container of pure water and an equal amount of a weak acid were added to a second container of pure water:

Accepted Answer

A)  the pH of both containers would go up equally 
B)  the pH of both containers would go down equally 
C)  the pH of the container with the strong acid would go up more than the container with the weak acid 
D)  none of the above 
A)  the pH of both containers would go up equally 
B)  the pH of both containers would go down equally 
C)  the pH of the container with the strong acid would go up more than the container with the weak acid 
D)  none of the above

Question 10

Phospholipids and triglycerides both have parts of their molecules that attract water.

Accepted Answer

A) True 
 B)False

Question 11

An atom with 15 protons would have an atomic mass of 15.

Accepted Answer

A) True 
 B)False

Question 12

Match the name of the element with the correct symbol.
-N

Accepted Answer

A) Potassium 
B) Phosphorus 
C) Sodium 
D) Calcium 
E) Carbon
F)Hydrogen
G)Chlorine
H)Nitrogen 
A) Potassium 
B) Phosphorus 
C) Sodium 
D) Calcium 
E) Carbon
F)Hydrogen
G)Chlorine
H)Nitrogen

Question 13

Organic compounds must contain

Accepted Answer

A)  oxygen 
B)  carbon-oxygen bonds 
C)  hydrogen-oxygen bonds 
D)  none of the above 
A)  oxygen 
B)  carbon-oxygen bonds 
C)  hydrogen-oxygen bonds 
D)  none of the above

Question 14

A solution that has a greater concentration of OH- ions than H⁺ ions would be called a base.

Accepted Answer

A) True 
 B)False

Question 15

Chemical bonds can store potential chemical energy.

Accepted Answer

A) True 
 B)False

Question 16

Covalent bonds

Accepted Answer

A)  dissociate in water 
B)  are formed when electrons are shared between atoms 
C)  are formed by atoms of opposite charge 
D)  both a and c above 
A)  dissociate in water 
B)  are formed when electrons are shared between atoms 
C)  are formed by atoms of opposite charge 
D)  both a and c above

Question 17

Which of the following carries a negative electrical charge?

Accepted Answer

A)  Proton 
B)  Neutron 
C)  Electron 
D)  Both proton and neutron 
A)  Proton 
B)  Neutron 
C)  Electron 
D)  Both proton and neutron

Question 18

In order for an atom to be an ion,the number of electrons cannot equal the number of protons.

Accepted Answer

A) True 
 B)False

Question 19

A solution with a pH of 4 has 100 times more H⁺ ions than a solution with a pH of 2.

Accepted Answer

A) True 
 B)False

Question 20

The "lock and key" model is use to describe the functioning of

Accepted Answer

A)  enzymes 
B)  collagen molecules 
C)  keratin molecules 
D)  both a and c above 
A)  enzymes 
B)  collagen molecules 
C)  keratin molecules 
D)  both a and c above

Exam 2: Chemistry of Life

Match the name of the element with the correct symbol. -Ca

The word carbohydrate literally means "sugar."

Which of the following is not true of phospholipids?

Bases produce an excess of OH- ions.

All compounds in the human body are,by definition,organic compounds.

Both DNA and RNA contain a sugar molecule as part of their structure.

List the three types of lipids in the body and describe the structure and function of each.

Describe the types of carbohydrates.What are the two large molecules that can store carbohydrates?

If a strong acid were added to one container of pure water and an equal amount of a weak acid were added to a second container of pure water:

Phospholipids and triglycerides both have parts of their molecules that attract water.

An atom with 15 protons would have an atomic mass of 15.

Match the name of the element with the correct symbol. -N

Organic compounds must contain

A solution that has a greater concentration of OH- ions than H⁺ ions would be called a base.

Chemical bonds can store potential chemical energy.

Covalent bonds

Which of the following carries a negative electrical charge?

In order for an atom to be an ion,the number of electrons cannot equal the number of protons.

A solution with a pH of 4 has 100 times more H⁺ ions than a solution with a pH of 2.

The "lock and key" model is use to describe the functioning of

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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