Chapter 2:Practice Quiz A

Question 1

The element essential for normal thyroid function is

Answer 1

Iodine

Question 2

Alkaline substances include…

Answer 2

Blood

Question 3

Is a pH of 11 acidic or basic?

Answer 3

Basic

Question 4

What property of water prevents rapid changes in body temperature?

Answer 4

High heat capacity

Question 5

What is the definition of ‘ions’?

Answer 5

Atoms have a positive or negative charge.

Question 6

Which of the following elements is not one of 4 that make up 96% of the body?

Answer 6

S

Question 7

Important functions of water include which of the following?

Answer 7

Provides cushioning; Acts as a transport medium; Participates in chemical reactions; Acts as a solvent for sugars, salts, and other solutes.

Question 8

What is an inorganic compound?

Answer 8

Lacks carbon

Question 9

Factors that increase the speed of chemical reactions include

Answer 9

Increasing the temperature; Increasing the concentration of reacting particles; Catalysts

Question 10

Which chemical bond is the weakest?

Answer 10

Hydrogen bond

Question 11

Which of the following is a polysaccharide?

Answer 11

Glycogen

Question 12

What is the storage form of glucose in humans?

Answer 12

Glycogen