Chapter 10 Micronutrients Flashcards

1
Q

1 What differentiates macro- and micronutrients?

The quantity in which they are needed in the diet.

The chemical structure of the nutrient differentiates them.

The metabolic reactions in which they are involved.

The role they play in the human body.

A

The quantity in which they are needed in the diet.

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2
Q

2 Deficiencies in vitamin B1 lead to which of the following?

Rickets

Beriberi

Scurvy

Eczema

A

Beriberi

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3
Q

3 What is the common name for vitamin B2?

Riboflavin

Thiamine

Folic acid

Pantothenic acid

A

Riboflavin

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4
Q

4 Pyridoxal, pyridoxine, and pyridoxamine are all molecules of which vitamin?

Vitamin B6

Vitamin B12

Vitamin K

Vitamin C

A

Vitamin B6

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5
Q

5 Choline is the primary molecule used to make what neurotransmitter?

Serotonin

Dopamine

Oxytocin

Acetylcholine

A

Acetylcholine

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6
Q

6 Deficiencies in vitamin C can lead to which of the following?

Scurvy

Rickets

Wernicke’s encephalopathy

Anemia

A

Scurvy

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7
Q
  1. Vitamin C deficiencies occur in what percentage of the population of the United States?

3%

10%

7%

22%

A

7%

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8
Q

8 What is the group of compounds that make up the vitamin A family called?

Eicosanoids

Retinoids

Prostaglandins

Tocopherols

A

Retinoids

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9
Q

9 What percent of children under the age of 5 have vitamin A deficiency worldwide?

5%

22%

33%

47%

A

33%

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10
Q

10 Deficiencies in vitamin E can lead to which of the following?

Sarcopenia

Slurred speech

Blindness

Deafness

A

Slurred speech

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11
Q

11 What blood process does vitamin K help directly control?

Blood pressure

Blood lipids

Blood sugar

Blood clotting

A

Blood clotting

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12
Q

12 What disease is the result of vitamin D deficiency?

Type 2 diabetes

Hypothyroidism

Rickets

Psoriasis

A

Rickets

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13
Q

13 What percent of the body is made of calcium?

1-2%

14-15%

6-7%

9-10%

A

1-2%

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14
Q

14 What is the normal range of calcium in the blood?

5.5-6.9 mg/dL

8.4-9.5 mg/dL

3.0-4.2 mg/dL

7.2-8.2 mg/dL

A

8.4-9.5 mg/dL

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15
Q

15 In which of the following key processes is chromium involved?

Heart rate

Blood pressure

Insulin signaling

Nerve conduction

A

Insulin signaling

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16
Q

16 Iron deficiency is the primary cause of which of the following conditions?

Hemophilia

Sickle cell

Hypertension

Anemia

17
Q

17 What percent of magnesium in the human body is found in bone tissue?

19%

60%

1%

20%

18
Q

18 What is the maximal recommended daily intake of mercury?

0.5 µg/kg

2 µg/kg

1 µg/kg

10 µg/kg

19
Q

19 What is the intracellular-to-extracellular ratio of potassium?

40:1

50:1

10:1

30:1

20
Q

20 What is the normal range for the extracellular concentration of sodium?

206 to 217 millimolar

136 to 151 millimolar

175 to 190 millimolar

321 to 338 millimolar

A

136 to 151 millimolar

21
Q

21 What is the definition of Estimated Average Requirement for a nutrient?

A nutrient intake value that is estimated to meet the requirement of half the healthy individuals in a group.

The highest level of daily nutrient intake that is likely to pose no risk of adverse health effects to almost all individuals in the general population.

A value based on observed or experimentally determined approximations of nutrient intake by a group (or groups) of healthy people.

The average daily dietary intake level that is sufficient to meet the nutrient requirement of nearly all (97 to 98%) healthy individuals in a group.

A

A nutrient intake value that is estimated to meet the requirement of half the healthy individuals in a group.

22
Q

22 What is the Recommended Dietary Allowance (RDA) of vitamin A for adult males ( > 18 years of age)?

600 μg/day

900 μg/day

400 μg/day

1000 μg/day

A

900 μg/day

23
Q

23 What is the Recommended Dietary Allowance (RDA) of iodine for adults (men and non-pregnant or lactating women > 18 years of age)?

150 μg/day

50 μg/day

75 μg/day

120 μg/day

A

150 μg/day

24
Q

24 What percent increased requirement do long distance runners have for iron compared to non-runners?

70%

25%

35%

50%

25
Q

25 What is the recommended serving amount of fruit per day based on USDA Guidelines?

3

1

4

6

26
Q

26 What is the result of extended periods of high doses of fluoride?

Damage to bones

Heart disease

Anemia

Hair loss

A

Damage to bones

27
Q

27 What important molecule is magnesium conjugated to in the body?

Leucine

Fatty acids

Hemoglobin

ATP

28
Q

28 In what process does selenium play a critical role?

Carbohydrate metabolism

Antioxidant system

Fatty acid metabolism

Production of neurotransmitters

A

Antioxidant system

29
Q

29 What medical therapy is used to remove metals from the body, specifically things like iron, mercury, arsenic, and/or lead?

Ultrasound

Chelation

Phlebotomy

Chemotherapy

30
Q

30 What percent of athletes have been found to have inadequate levels of vitamin D?

36%

73%

11%

54%

31
Q

31 What elemental metal is present in vitamin B12?

Cobalt

Copper

Iron

Nickel

32
Q

32 What family of compounds are the vitamin K1 compounds called?

Phylloquinones

Menaquinones

Tocopherols

Retinoids

A

Phylloquinones

33
Q

33 What feature of minerals makes them different from vitamins?

They help with metabolic processes.

They cannot be manufactured by the body in sufficient quantities.

They are inorganic.

They are needed in greater quantities.

A

They are inorganic.

34
Q

34 What is the common name for vitamin B3?

Niacin

Riboflavin

Folate

Thiamine

35
Q

35 Hyponatremia (low-sodium concentration in the blood) sets in when sodium falls below what concentration?

68 millimolar

164 millimolar

135 millimolar

203 millimolar

A

135 millimolar