Quiz 2

Question 1

The three primary organic compounds found in the body are:

Answer 1

carbohydrates, fats, protein

Question 2

Ninety-six percent of all matter is composed of three elements. Those elements are:

Answer 2

carbon, hydrogen, oxygen

Question 3

The smallest unit of matter that maintains all of it’s properties is a:

Answer 3

atom

Question 4

Because electrons possess the properties of both an energy wave and a particle they are commonly called:

Answer 4

wavicles

Question 5

A heterogeneous mixture containing large particles that remain in solution (won’t separate) and often reflect light (appear milky) is called a:

Answer 5

colloid

Question 6

A heterogeneous mixture consisting of large particles that separate from the solvent if not in motion is called a:

Answer 6

suspension

Question 7

Salts ionize easily in water and generally function as _________ in physiologic reactions

Answer 7

ions

Question 8

Carbohydrates are organic molecules containing carbon, hydrogen and oxygen that function as a primary energy source in the body.

Answer 8

True

Question 9

Lipids are inorganic compounds that function as an energy source in the body.

Answer 9

False

Question 10

Saturated fats are typically liquids (oils) at room temperature.

Answer 10

False

Question 11

Proteins are organic compounds that function in the growth and repair of tissues in the body.

Answer 11

True

Question 12

ATP is considered the “energy currency” of the body because it releases energy when high energy phosphate bonds are broken.

Answer 12

True

Question 13

The pH of 4 is considered a neutral pH

Answer 13

False

Question 14

Covalent bonds are strong bonds that result when electrons are shared by atoms

Answer 14

True

Question 15

In the body, electrolytes are:

Answer 15

ionized salts