Question 1

Which symptom of a vitamin A deficiency is most likely responsible for deficiency-related deaths?

Accepted Answer

A)  its function as a teratogen 
B)  poor cellular differentiation and growth 
C)  keratinization of the cornea 
D)  severe infections 
A)  its function as a teratogen 
B)  poor cellular differentiation and growth 
C)  keratinization of the cornea 
D)  severe infections D

Question 2

Which micromineral deficiency interferes with vitamin A metabolism by reducing retinol-binding protein?

Accepted Answer

A)  manganese 
B)  zinc 
C)  selenium 
D)  iron 
A)  manganese 
B)  zinc 
C)  selenium 
D)  iron B

Question 3

Which vitamin is believed to function like a steroid hormone?

Accepted Answer

A)  choline 
B)  vitamin A 
C)  vitamin D 
D)  vitamin E 
A)  choline 
B)  vitamin A 
C)  vitamin D 
D)  vitamin E C

Question 4

What % of vitamin D from the diet is absorbed?

Accepted Answer

A)  20 
B)  30 
C)  40 
D)  50 
A)  20 
B)  30 
C)  40 
D)  50

Question 5

Which is the best technique to assess status of vitamin A liver stores?

Accepted Answer

A)  serum retinol levels 
B)  the relative dose response 
C)  clinical eye examinations 
A)  serum retinol levels 
B)  the relative dose response 
C)  clinical eye examinations

Question 6

It's a good thing that milk is fortified with vitamin D so that we can consume the RDA if we drink the recommended number of glasses of milk each day. The DRI for 9-69 year olds is 600 IU (15 $\mu$g). This equals _____ cups of milk.

Accepted Answer

A)  two 
B)  three 
C)  four 
D)  six 
A)  two 
B)  three 
C)  four 
D)  six

Question 7

Which vitamin is said to be essential for growth and immune system function?

Accepted Answer

A)  K 
B)  A 
C)  D 
D)  E 
A)  K 
B)  A 
C)  D 
D)  E

Question 8

Which is NOT related to the functions of vitamin A?

Accepted Answer

A)  neurological function 
B)  growth 
C)  immunity 
D)  cell differentiation 
A)  neurological function 
B)  growth 
C)  immunity 
D)  cell differentiation

Question 9

Choose the phrase which best explains the following statement: "β-carotene is no magic bullet."

Accepted Answer

A)  β-carotene does not decrease the reactivity of singlet oxygen molecules. 
B)  β-carotene is not the only health-promoting molecule in fruits and vegetables. 
C)  β-carotene supplements cannot be manufactured cheaply enough. 
D)  β-carotene can replace vitamin E in terminating the auto-oxidation of fatty acids. 
A)  β-carotene does not decrease the reactivity of singlet oxygen molecules. 
B)  β-carotene is not the only health-promoting molecule in fruits and vegetables. 
C)  β-carotene supplements cannot be manufactured cheaply enough. 
D)  β-carotene can replace vitamin E in terminating the auto-oxidation of fatty acids.

Question 10

Choose the food that is high in vitamin A palmitate.

Accepted Answer

A)  spinach 
B)  liver 
C)  carrots 
D)  pumpkin 
A)  spinach 
B)  liver 
C)  carrots 
D)  pumpkin

Question 11

In what cells will you find most of the retinol and vitamin A stored?

Accepted Answer

A)  stellate 
B)  gallbladder 
C)  fundus 
D)  antrum 
A)  stellate 
B)  gallbladder 
C)  fundus 
D)  antrum

Question 12

Which is retinyl palmitate?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 13

Which vitamin D molecule would you expect to see in fortified foods?

Accepted Answer

A)  ergocalciferol - vitamin D2 
B)  calcidiol - 25-OH D3 
C)  calcitriol - 1,25-OH2 D3 
D)  cholecalciferol - vitamin D3 
A)  ergocalciferol - vitamin D2 
B)  calcidiol - 25-OH D3 
C)  calcitriol - 1,25-OH2 D3 
D)  cholecalciferol - vitamin D3

Question 14

What happens to retinal in the enterocyte?

Accepted Answer

A)  it is esterified 
B)  it is reduced to retinol 
C)  it is transported into the portal blood 
D)  15, 15' dioxygenase acts to form beta-carotene 
A)  it is esterified 
B)  it is reduced to retinol 
C)  it is transported into the portal blood 
D)  15, 15' dioxygenase acts to form beta-carotene

Question 15

Imagine you are a nutritionist working in a country other than the U.S. Which is an assumption about vitamin D status that is NOT true?

Accepted Answer

A)  The latitude makes a difference as regards how much vitamin D can be self-synthesized. 
B)  Customs of dress make a difference as regards how much vitamin D can be self-synthesized. 
C)  Cow's milk is a reliable source of vitamin D in the food supply. 
D)  Skin color makes a difference as regards how much sun is needed to synthesize vitamin D. 
A)  The latitude makes a difference as regards how much vitamin D can be self-synthesized. 
B)  Customs of dress make a difference as regards how much vitamin D can be self-synthesized. 
C)  Cow's milk is a reliable source of vitamin D in the food supply. 
D)  Skin color makes a difference as regards how much sun is needed to synthesize vitamin D.

Question 16

In order to be carried in the chylomicron, retinol (once in the enterocyte) is _____.

Accepted Answer

A)  esterified by lecithin retinol acyl transferase 
B)  converted to retinaldehyde by retinaldehyde reductase 
C)  attached to a VLDL 
D)  attached to an RXR receptor on the nucleus 
A)  esterified by lecithin retinol acyl transferase 
B)  converted to retinaldehyde by retinaldehyde reductase 
C)  attached to a VLDL 
D)  attached to an RXR receptor on the nucleus

Question 17

Which is the strongest antioxidant?

Accepted Answer

A)  beta-carotene 
B)  alpha-tocopherol 
C)  beta-cryptoxanthin 
D)  lycopene 
A)  beta-carotene 
B)  alpha-tocopherol 
C)  beta-cryptoxanthin 
D)  lycopene

Question 18

Which vitamin has as its primary function the maintenance of calcium homeostasis?

Accepted Answer

A)  A 
B)  D 
C)  E 
D)  K 
A)  A 
B)  D 
C)  E 
D)  K

Question 19

Which is β-carotene?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 20

Choose the ONE correct statement.

Accepted Answer

A)  Beta-carotene is hydrolyzed in the jejunum before it is absorbed. 
B)  Retinol does not need to form a micelle to cross the USW. 
C)  Beta-carotene dioxygenase activity occurs in the lumen of the ileum. 
D)  Retinol must be re-esterified to be carried in the chylomicron. 
A)  Beta-carotene is hydrolyzed in the jejunum before it is absorbed. 
B)  Retinol does not need to form a micelle to cross the USW. 
C)  Beta-carotene dioxygenase activity occurs in the lumen of the ileum. 
D)  Retinol must be re-esterified to be carried in the chylomicron.

Which symptom of a vitamin A deficiency is most likely responsible for deficiency-related deaths?

Which micromineral deficiency interferes with vitamin A metabolism by reducing retinol-binding protein?

Which vitamin is believed to function like a steroid hormone?

What % of vitamin D from the diet is absorbed?

Which is the best technique to assess status of vitamin A liver stores?

It's a good thing that milk is fortified with vitamin D so that we can consume the RDA if we drink the recommended number of glasses of milk each day. The DRI for 9-69 year olds is 600 IU (15 $\mu$ g). This equals _____ cups of milk.

Which vitamin is said to be essential for growth and immune system function?

Which is NOT related to the functions of vitamin A?

Choose the phrase which best explains the following statement: "β-carotene is no magic bullet."

Choose the food that is high in vitamin A palmitate.

In what cells will you find most of the retinol and vitamin A stored?

Which is retinyl palmitate?

Which vitamin D molecule would you expect to see in fortified foods?

What happens to retinal in the enterocyte?

Imagine you are a nutritionist working in a country other than the U.S. Which is an assumption about vitamin D status that is NOT true?

In order to be carried in the chylomicron, retinol (once in the enterocyte) is _____.

Which is the strongest antioxidant?

Which vitamin has as its primary function the maintenance of calcium homeostasis?

Which is β-carotene?

Choose the ONE correct statement.

The Cell: a Microcosm of Life

The Digestive System:mechanism for Nourishing the Body

Carbohydrates

Fiber

Lipids

Protein

Integration and Regulation of Metabolismand the Impact of Exercise and Sport

Body Composition, Energy Expenditure, and Energy Balance

Water-Soluble Vitamins

Major Minerals

Water and Electrolytes

Essential Trace and Ultratrace Minerals

Nonessential Trace and Ultratrace Minerals

Filters

Exam 10: Fat-Soluble Vitamins

Which symptom of a vitamin A deficiency is most likely responsible for deficiency-related deaths?

Which micromineral deficiency interferes with vitamin A metabolism by reducing retinol-binding protein?

Which vitamin is believed to function like a steroid hormone?

What % of vitamin D from the diet is absorbed?

Which is the best technique to assess status of vitamin A liver stores?

It's a good thing that milk is fortified with vitamin D so that we can consume the RDA if we drink the recommended number of glasses of milk each day. The DRI for 9-69 year olds is 600 IU (15 μ\muμ g). This equals _____ cups of milk.

Which vitamin is said to be essential for growth and immune system function?

Which is NOT related to the functions of vitamin A?

Choose the phrase which best explains the following statement: "β-carotene is no magic bullet."

Choose the food that is high in vitamin A palmitate.

In what cells will you find most of the retinol and vitamin A stored?

Which is retinyl palmitate?

Which vitamin D molecule would you expect to see in fortified foods?

What happens to retinal in the enterocyte?

Imagine you are a nutritionist working in a country other than the U.S. Which is an assumption about vitamin D status that is NOT true?

In order to be carried in the chylomicron, retinol (once in the enterocyte) is _____.

Which is the strongest antioxidant?

Which vitamin has as its primary function the maintenance of calcium homeostasis?

Which is β-carotene?

Choose the ONE correct statement.

The Cell: a Microcosm of Life

The Digestive System:mechanism for Nourishing the Body

Carbohydrates

Fiber

Lipids

Protein

Integration and Regulation of Metabolismand the Impact of Exercise and Sport

Body Composition, Energy Expenditure, and Energy Balance

Water-Soluble Vitamins

Major Minerals

Water and Electrolytes

Essential Trace and Ultratrace Minerals

Nonessential Trace and Ultratrace Minerals

Filters

It's a good thing that milk is fortified with vitamin D so that we can consume the RDA if we drink the recommended number of glasses of milk each day. The DRI for 9-69 year olds is 600 IU (15 $\mu$ g). This equals _____ cups of milk.