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The amount of water in each compartment mainly is controlled by


A) oxygen concentration.
B) glucose concentration.
C) the presence of fatty acids.
D) ion concentration.

E) None of the above
F) A) and C)

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Water constitutes ______ percent of body weight.


A) 10-20
B) 25-45
C) 50-70
D) 75-95

E) C) and D)
F) A) and D)

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_______________ is the process of equalizing ion concentration by movement of fluid through a semipermeable membrane, such as the one surrounding cells.

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Which of the following statements is true about iron?


A) Iron deficiency anemia is found among young children, adolescents, and menstruating women.
B) Sixty-five percent of dietary iron is absorbed.
C) An iron-deficient individual absorbs less iron.
D) Excess dietary iron is excreted readily via the kidneys.

E) All of the above
F) A) and D)

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The maj chlide source in the diet is


A) nuts.
B) milk.
C) cheese.
D) salt.

E) All of the above
F) B) and C)

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During intense vomiting, much _______________ can be lost because this mineral is present in stomach acid.

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chloride O...

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We get most of the sulfur in our diets from


A) carbohydrates.
B) water.
C) fats and oils.
D) proteins.

E) C) and D)
F) A) and B)

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The mineral that protects tooth enamel from erosion by acid-producing bacteria is


A) selenium.
B) zinc.
C) copper.
D) fluoride.

E) A) and B)
F) B) and D)

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The Beverage Guidance System recommends that fluids should provide ______ of total calies consumed.


A) 0%
B) less than 10%
C) no more than 20%
D) at least 50%

E) A) and D)
F) All of the above

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Which of the following foods is highest in selenium?


A) Raisins
B) Special K
C) Skim milk
D) Tuna

E) None of the above
F) A) and B)

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Match the following with the descriptions below

Premises
Decreased bone mass where no outward cause can be found
Iron provided from animal tissues
Substances that break down into ions in water and, in turn, are able to conduct an electrical current
The degree to which the amount of an ingested nutrient is absorbed and is available to the body
A body condition marked by sharp contraction of muscles and failure to relax afterward
Mineral required in the diet in amounts greater than 100 milligrams per day
A mineral vital to health that is required in the diet in amounts less than 100 milligrams per day
Iron provided from plant sources
The iron-containing part of the red blood cell that carries oxygen to cells and some carbon dioxide away from cells
Iron-containing compound that binds oxygen in muscle tissue
An enlargement of the thyroid gland
Total mineral content of bone at a specific bone site divided by the width of the bone at that site
Stunting of body growth and poor mental development
Total mineral substance in a cross section of bone
Responses
Trace mineral
Goiter
Nonheme iron
Heme iron
Tetany
Bone mass
Electrolytes
Myoglobin
Osteoporosis
Cretinism
Hemoglobin
Bone mineral density
Major mineral
Bioavailability

Correct Answer

Decreased bone mass where no outward cause can be found
Iron provided from animal tissues
Substances that break down into ions in water and, in turn, are able to conduct an electrical current
The degree to which the amount of an ingested nutrient is absorbed and is available to the body
A body condition marked by sharp contraction of muscles and failure to relax afterward
Mineral required in the diet in amounts greater than 100 milligrams per day
A mineral vital to health that is required in the diet in amounts less than 100 milligrams per day
Iron provided from plant sources
The iron-containing part of the red blood cell that carries oxygen to cells and some carbon dioxide away from cells
Iron-containing compound that binds oxygen in muscle tissue
An enlargement of the thyroid gland
Total mineral content of bone at a specific bone site divided by the width of the bone at that site
Stunting of body growth and poor mental development
Total mineral substance in a cross section of bone

Accding to the RDA, the mineral that you need in the largest amount is


A) iron.
B) iodine.
C) calcium.
D) copper.

E) A) and B)
F) A) and C)

Correct Answer

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The typical American diet contains approximately ___ milligrams of sodium.


A) 700 to 1,200
B) 1,300 to 2,200
C) 2,300 to 4,700
D) 5,000 to 10,000

E) A) and B)
F) A) and C)

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In people with hypertension, increased intake of _______________ may lower blood pressure. It is found in greatest abundance in fruits and vegetables. A deficiency can lead to muscle cramps and irregular heartbeat.

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potassium ...

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Intracellular water volume depends primarily on the concentration of


A) sodium and chloride.
B) phosphate and potassium.
C) potassium and sodium.
D) chloride and potassium.

E) C) and D)
F) A) and B)

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What is magnesium's primary function?


A) It acts as the carrier for calcium absorption.
B) It is important in hemoglobin synthesis.
C) It maintains mucus production in the digestive tract.
D) It is important for nerve and heart function.

E) A) and B)
F) A) and C)

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The best-absbed iron source is found in which of the following foods?


A) Sirloin steak
B) Broccoli
C) Kidney beans
D) Cheese

E) B) and C)
F) A) and D)

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_______________ is imptant in the synthesis of hemoglobin and the transpt and stage of iron. With vitamin C, this mineral is imptant in collagen synthesis.

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Of the following, the best source of potassium is


A) fresh spinach.
B) milk.
C) white bread.
D) canned tuna.

E) B) and C)
F) A) and B)

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The AI f sodium f those under 51 years of age is


A) 500 mg/day.
B) 1000 mg/day.
C) 1500 mg/day.
D) 2000 mg/day.

E) All of the above
F) A) and B)

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