Question 1

Which of the following factors increases iron absorption?

Accepted Answer

A)  high intakes of zinc
B)  high stores of iron
C)  low gastric acidity
D)  increased need for ironE) A) and D)
F) C) and D)

Question 2

The role of hydroxyfluorapatite is to

Accepted Answer

A)  enhance insulin sensitivity and prevent diabetes.
B)  prevent dental caries.
C)  improve the rate of growth in children.
D)  prevent the development of anemia.E) B) and C)
F) None of the above

Question 3

Which of the following enzymes contains selenium?

Accepted Answer

A)  glutathione peroxidase
B)  superoxide dismutase
C)  lysyl oxidase
D)  pancreaseE) B) and C)
F) None of the above

Question 4

Ferritin and hemosiderin are

Accepted Answer

A)  storage forms of iron.
B)  zinc-containing proteins.
C)  protein carriers of selenium in the blood.
D)  iodine-containing enzymes.E) C) and D)
F) None of the above

Question 5

Dietary heme iron is obtained mainly from plant-based foods.

Accepted Answer

A) True 
 B)False

Question 6

Manganese plays a role in antioxidant defense as a part of the superoxide dismutase enzyme system.

Accepted Answer

A) True 
 B)False

Question 7

The proteins ____________ oxidize ferrous iron to ferric iron to allow iron to be transported to body cells.

Accepted Answer

A)  hemosiderin and ferritin
B)  heme and non-heme
C)  hephaestin and ceruloplasmin
D)  ferritin and albuminE) A) and B)
F) A) and C)

Question 8

A major factor contributing to the decline in iron deficiency anemia among poor preschool children in the U.S.is

Accepted Answer

A)  better nutrition education of parents,so that foods children need are actually being served.
B)  the federal Food Stamp Program (now called SNAP) .
C)  the nationwide system of food pantries and soup kitchens.
D)  the Special Supplemental Nutrition Program for Women,Infants,and Children (WI
C)  that distributes iron-fortified formulas and cereals.E) C) and D)
F) A) and B)

Question 9

The signs and symptoms of iron-deficiency anemia are reflective of this condition.

Accepted Answer

A)  Hyperthyroidism
B)  Anemia
C)  Hypothyroidism
D)  OsteomalaciaE) A) and B)
F) C) and D)

Question 10

Ceruloplasmin is

Accepted Answer

A)  a zinc-containing enzyme in the intestinal wall.
B)  a copper-containing enzyme that oxidizes Fe2+ to Fe3+.
C)  the storage form of iron in the liver.
D)  a component of the electron transport system.E) A) and C)
F) C) and D)

Question 11

High intakes of polyphenols,meat protein factor,and manganese aid in the absorption of non-heme iron.

Accepted Answer

A) True 
 B)False

Question 12

In the U.S.,accidental iron overdose is the leading cause of poisoning in young children less than 6 years of age.

Accepted Answer

A) True 
 B)False

Question 13

Excess intake of zinc supplements can reduce absorption of

Accepted Answer

A)  selenium.
B)  calcium.
C)  copper.
D)  iodine.E) A) and B)
F) A) and C)

Question 14

In a situation where there is an insufficient intake of dietary iodide,the thyroid-stimulating hormone promotes the enlargement of the thyroid gland.This condition is called

Accepted Answer

A)  Graves' disease.
B)  goiter.
C)  hyperparathyroidism.
D)  Wilson's disease.E) A) and B)
F) A) and C)

Question 15

Zinc supplementation is a scientifically proven means of preventing the common cold.

Accepted Answer

A) True 
 B)False

Question 16

Approximately _______ of iron used each day is recovered and recycled.

Accepted Answer

A)  10%
B)  25%
C)  75%
D)  90%E) C) and D)
F) B) and D)

Question 17

The richest sources of copper are

Accepted Answer

A)  oranges and melons.
B)  refined grains and pastries.
C)  nuts and dark chocolate.
D)  dark leafy greens.E) A) and C)
F) A) and B)

Question 18

Excessive fluoride exposure during tooth development can cause

Accepted Answer

A)  glucose intolerance.
B)  mottling of the teeth.
C)  dermatitis.
D)  bleeding of the gums.E) B) and C)
F) A) and B)

Question 19

Cretinism may form as a consequence of a severe deficiency of

Accepted Answer

A)  chromium.
B)  selenium.
C)  copper.
D)  iodine.E) A) and B)
F) All of the above

Question 20

The RDA for zinc for adults is

Accepted Answer

A)  11 grams for men and 8 grams for women.
B)  15 grams for both men and women.
C)  11 mg for men and 8 mg for women.
D)  15 mg for both men and women.E) A) and D)
F) B) and D)

Exam 15: Trace Minerals

A major factor contributing to the decline in iron deficiency anemia among poor preschool children in the U.S.is

Correct AnswerverifiedShow Answer

In the U.S.,accidental iron overdose is the leading cause of poisoning in young children less than 6 years of age.

Correct AnswerverifiedShow Answer

Cretinism may form as a consequence of a severe deficiency of

Correct AnswerverifiedShow Answer

Manganese plays a role in antioxidant defense as a part of the superoxide dismutase enzyme system.

Correct AnswerverifiedShow Answer

The role of hydroxyfluorapatite is to

Correct AnswerverifiedShow Answer

Zinc supplementation is a scientifically proven means of preventing the common cold.

Correct AnswerverifiedShow Answer

Excessive fluoride exposure during tooth development can cause

Correct AnswerverifiedShow Answer

Ferritin and hemosiderin are

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The RDA for zinc for adults is

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High intakes of polyphenols,meat protein factor,and manganese aid in the absorption of non-heme iron.

Correct AnswerverifiedShow Answer

Which of the following factors increases iron absorption?

Correct AnswerverifiedShow Answer

The richest sources of copper are

Correct AnswerverifiedShow Answer

Which of the following enzymes contains selenium?

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Approximately _______ of iron used each day is recovered and recycled.

Correct AnswerverifiedShow Answer

The signs and symptoms of iron-deficiency anemia are reflective of this condition.

Correct AnswerverifiedShow Answer

Excess intake of zinc supplements can reduce absorption of

Correct AnswerverifiedShow Answer

Ceruloplasmin is

Correct AnswerverifiedShow Answer

The proteins ____________ oxidize ferrous iron to ferric iron to allow iron to be transported to body cells.

Correct AnswerverifiedShow Answer

Dietary heme iron is obtained mainly from plant-based foods.

Correct AnswerverifiedShow Answer

In a situation where there is an insufficient intake of dietary iodide,the thyroid-stimulating hormone promotes the enlargement of the thyroid gland.This condition is called

Correct AnswerverifiedShow Answer

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