BMS 105 EXAM 3 UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
Question:
1. Beta-carotene is a fat soluble provitamin found primarily in orange, red, and yellow fruits and
vegetables. How can you enhance your body's absorption of beta-carotene when preparing low-fat foods
that are rich sources of the provitamin?
a. combine raw greens with salad dressing that contains vegetable oil
b. include a source of Vitamin C with the foods
c. add a little salt to the food before cooking it
d. store fruit and vegetables in plastic bags at room temperature
Answer:
a. combine raw greens with salad dressing that contains vegetable oil
Question:
2. Most B vitamins function as part of _____.
a. enzymes
b. coenzymes
c. sources of energy
d. antioxidants
Answer:
b. coenzymes
explanation: most water-soluble vitamins function as coenzymes that interact with enzymes, enabling them
to function
Question:
3. To reduce your risk of cancer, you should ______.
a. cook meat, fish, and poultry products very thoroughly
b. focus on eating more protein and restricting your carbohydrate intake
c. include a variety of fruits, vegetables, and whole-grain foods in your diet
d. eliminate all forms of fat and sugar from your diet
Answer:
c. include a variety of fruits, vegetables, and whole-grain foods in your diet
explanation: fruits and vegetables contain phytochemicals, which can naturally decrease cancer risk
Question:
4. Last week, Leon started taking megadoses of a dietary supplement to reduce his blood lipid levels.
Within a few days after he began taking the supplement, he noticed his face felt uncomfortably warm and
his cheeks were red. Based on this information, Leon is taking _____.
a. niacin
b. folic acid
c. vitamin B-6
d. riboflavin
, Answer:
a. niacin
explanation: taking niacin supplements can cause a "niacin flush." Some doctors recommend supplements
of niacin for its cholesterol-lowering benefits
Question:
5. Desi had a history of chronic heartburn. To control the disorder, he now takes two medications that
reduce his stomachs ability to form acid. As a result of taking these medications, he doesn't have heartburn,
but he has a high risk of developing a deficiency of _______.
a. choline
b. vitamin B-12
c. biotin
d. vitamin D
Answer:
b. vitamin B-12
explanation: vitamin B-12 is bound to protein in foods. Stomach acid helps release the vitamin form the
protein, so it can be picked up by intrinsic factor and carried to the small intestine for absorption.
Question:
6. Which of the following substances enhances the absorption of fat-soluble vitamins in the small
intestine?
a. hydrochloric acid
b. pancreatic amylase
c. bile
d. pepsin
Answer:
c. bile
Question:
7. _______ are fat-soluble vitamins.
a. vitamins K, E, and D
b. pantothenic acid, vitamin A, and choline
c. niacin, riboflavin, and thiamin
d. vitamins B-12, B-6, and E
Answer:
a. vitamins K, E, and D
Question:
8. The _____ is the primary site for vitamin absorption in the body.
a. stomach
b. large intestine
c. pancreas
d. small intestine
Answer:
d. small intestine
CORRECT ANSWERS
Question:
1. Beta-carotene is a fat soluble provitamin found primarily in orange, red, and yellow fruits and
vegetables. How can you enhance your body's absorption of beta-carotene when preparing low-fat foods
that are rich sources of the provitamin?
a. combine raw greens with salad dressing that contains vegetable oil
b. include a source of Vitamin C with the foods
c. add a little salt to the food before cooking it
d. store fruit and vegetables in plastic bags at room temperature
Answer:
a. combine raw greens with salad dressing that contains vegetable oil
Question:
2. Most B vitamins function as part of _____.
a. enzymes
b. coenzymes
c. sources of energy
d. antioxidants
Answer:
b. coenzymes
explanation: most water-soluble vitamins function as coenzymes that interact with enzymes, enabling them
to function
Question:
3. To reduce your risk of cancer, you should ______.
a. cook meat, fish, and poultry products very thoroughly
b. focus on eating more protein and restricting your carbohydrate intake
c. include a variety of fruits, vegetables, and whole-grain foods in your diet
d. eliminate all forms of fat and sugar from your diet
Answer:
c. include a variety of fruits, vegetables, and whole-grain foods in your diet
explanation: fruits and vegetables contain phytochemicals, which can naturally decrease cancer risk
Question:
4. Last week, Leon started taking megadoses of a dietary supplement to reduce his blood lipid levels.
Within a few days after he began taking the supplement, he noticed his face felt uncomfortably warm and
his cheeks were red. Based on this information, Leon is taking _____.
a. niacin
b. folic acid
c. vitamin B-6
d. riboflavin
, Answer:
a. niacin
explanation: taking niacin supplements can cause a "niacin flush." Some doctors recommend supplements
of niacin for its cholesterol-lowering benefits
Question:
5. Desi had a history of chronic heartburn. To control the disorder, he now takes two medications that
reduce his stomachs ability to form acid. As a result of taking these medications, he doesn't have heartburn,
but he has a high risk of developing a deficiency of _______.
a. choline
b. vitamin B-12
c. biotin
d. vitamin D
Answer:
b. vitamin B-12
explanation: vitamin B-12 is bound to protein in foods. Stomach acid helps release the vitamin form the
protein, so it can be picked up by intrinsic factor and carried to the small intestine for absorption.
Question:
6. Which of the following substances enhances the absorption of fat-soluble vitamins in the small
intestine?
a. hydrochloric acid
b. pancreatic amylase
c. bile
d. pepsin
Answer:
c. bile
Question:
7. _______ are fat-soluble vitamins.
a. vitamins K, E, and D
b. pantothenic acid, vitamin A, and choline
c. niacin, riboflavin, and thiamin
d. vitamins B-12, B-6, and E
Answer:
a. vitamins K, E, and D
Question:
8. The _____ is the primary site for vitamin absorption in the body.
a. stomach
b. large intestine
c. pancreas
d. small intestine
Answer:
d. small intestine
