CHAPTER 2.4

Question 1

most important and abundant inorganic compound in all living systems.

Answer 1

water

Question 2

dissolves another substance called the solute.

Answer 2

solvent

Question 3

loving, which means they dissolve easily in water.

Answer 3

hydrophilic

Question 4

fearing, ). They are not very water soluble.

Answer 4

hydrophobic

Question 5

enable dietary nutrients to be absorbed into the body.

Answer 5

Hydrolysis reactions

Question 6

water molecule is one of the products formed, two smaller molecules join to form a larger molecule.

Answer 6

Dehydration synthesis reaction

Question 7

differs from a solution mainly because of the size of its particles

Answer 7

colloid

Question 8

the suspended material may mix with the liquid or suspending medium for some time, but eventually it will settle out.

Answer 8

suspension

Question 9

a solution may be expressed in several ways.

Answer 9

concentration

Question 10

To ensure homeostasis, intracellular and extracellular fluids must contain almost balanced quantities of ___

Answer 10

acids and bases

Question 11

A solution’s acidity or alkalinity is expressed on the pH scale, which extends from __ to __

Answer 11

0 to 14

Question 12

normal pH level

Answer 12

7

Question 13

normal pH blood

Answer 13

between 7.35 and 7.45

Question 14

what happen when pH of blood falls below ____

Answer 14

7.35 - acidosis

Question 15

what happen when pH of blood rises above

Answer 15

7.35 - alkalosis

Question 16

what makes water lubricant?

Answer 16

water is a major component of mucus