Chapter 9 – Water and the Minerals

Chapter 9 – Water and the Minerals

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

Multiple Choice

c      K     225                 1.     What percentage of an adult’s body is water?

1. 30%
2. 40%
3. 60%
4. 90%

b      K     225                 2.     Water is involved in all of the following except:

1. regulating body temperature.
2. converting lipids to amino acids.
3. serving as a solvent for minerals and vitamins.
4. acting as a lubricant around joints.

b      K     225                 3.     The hormone that stimulates the kidneys to reabsorb water rather than excrete it is

1. thyroxine.
2. ADH.
3. cortisone.
4. epinephrine.

a      K     226                 4.     What is the minimum amount of urine the body must excrete each day to remove waste products?

1. 500 mL
2. 700 mL
3. 2300 mL
4. 3000 mL

c      A     226                 5.     A person must have water in his or her diet:

1. because the kidneys exert no control over the amount of water excreted in the urine.
2. to prevent vitamin imbalances in the body.
3. because the kidneys must excrete a minimum amount of water as urine to rid the body of wastes.
4. in order to prevent water intoxication.

b      K     227                 6.     According to the DRI Committee, the adequate intake for total water for a female is:

1. 2 cups per day.
2. 2.7 L per day.
3. 3.7 L per day.
4. 24 ounces per day.

c      K     227                 7.     In regard to caffeine, the DRI Committee determined that:

1. beverages that contain caffeine do not count toward meetings one’s fluid needs.
2. a person should not consume more than three cups of caffeine-containing beverages a day.
3. caffeinated beverages contribute to daily total water intake similar to that contributed by non-caffeinated beverages.
4. caffeine causes a net deficit of fluid in the body; therefore, caffeine-containing beverages should be avoided by athletes particularly.