Practice Quizzes

Chapter 12: Water and Major Minerals

1: Which of the following persons is likely to have the highest percentage of body water?
an overweight middle-age man
an obese female teacher
a body builder
all of the above persons have approximately the same percentage of body water
2: It takes a longer time to heat apple juice than a piece of apple pie because
apple pie has more calories.
apple juice has more simple sugars.
apple juice has a greater heat capacity.
apple pie contains refined sugars.
3: An electrolyte solution always contains
more cations than anions.
more anions than cations.
twice as many ions as cations and anions.
equal numbers of cations and anions.
4: The _____ compartment of the body contains about two-thirds of the body’s water.
blood plasma
5: Maintaining a very high-protein diet is a risk factor for dehydration because
protein-rich foods generally contain less water than other types of foods.
protein digestion leads to a significant loss of water in the intestines.
the liver combines proteins with phospholipids and water for excretion through the skin.
the kidneys need water to eliminate the excess urea in the urine.
6: Increased sodium intake
decreases extracellular fluid volume.
increases extracellular fluid volume.
increases sodium retention.
decreases blood pressure.
7: Which of the following persons has the lowest risk of dehydration?
an infant with diarrhea
an older adult who drinks 20 ounces of water per day
an adult with severe burns
a pregnant woman with fair skin
8: Which of the following statements is true?
Stomach acid destroys half of the iron in a meal that contains meat.
Heating soup to a high temperature will reduce its sodium content.
If people with hypertension eat a diet rich in Potassium, their blood pressure often improves
The calcium in milk is easily destroyed by heat.
9: _____ contributes the most sodium to the typical American’s diet.
Fresh meat
Processed food
Monosodium glutamate
Table salt
10: Which of the following foods provides the most potassium per serving?
dill pickles
canned peaches
11: Hyperkalemia
can be a sign of kidney failure.
increases the heart rate.
rarely is a serious problem.
none of the above
12: In the body, calcium plays important roles in all the following EXCEPT
free radical formation.
blood clotting.
transmission of nerve impulses.
muscle contractions.
13: Of the following dairy products, which provides the least amount of calcium per serving?
cheddar cheese
non-fat yogurt
non-fat milk
cottage cheese
14: Rich sources of phosphorous in the typical American’s diet include
milk, processed meats, and soft drinks.
enriched grain products and beans.
fresh vegetables and fruits.
fats and oils.
15: Which of the following substances interferes with the absorption of calcium?
natural acids in orange juice
magnesium in chocolate
phytates in cereal
phosphorous in milk
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