Central Texas College - BIOL 1322

Lesson 5 quiz practice

Question 1)The RDA for niacin is   .

Question 2

The bioavailability of vitamins in food            .

Question 3

Which of the following is not true of vitamin B ₁₂

 Question 4

The RDA for thiamin is                .

Question 5

Which of the following is true of niacin?

Question 6

What is the richest source of thiamin?

Question 7

What is the main cause of vitamin B ₁₂ deficiency?

Question 8

Which of these is the greatest contributor of riboflavin in most people’s diet?

Question 9

Of these foods, which is the best source of vitamin B ₆?

Question 10

Which of the following is true of vitamin B ₆?

 Question 11

Of these foods, which is the best source of riboflavin?

Question 12

How much more available to the body is synthetic folate than naturally occurring folate?

 Question 13

Which B vitamin is stored extensively in muscle tissue?

 Question 14

About what percentage of U.S. adults take a multivitamin–mineral supplement regularly?

 Question 15

Which of the following is a symptom of riboflavin deficiency?

Question 16

What organ in the body contains more vitamin C than any other organ?

Question 17

Which of the following is a function of vitamin C?

Question 18

Which of the following is not known to increase vitamin C needs?

 Question 19

Which type of supplement is particularly toxic and has caused deaths in children?

 Question 20

Which of the following is known to be toxic in large doses?

 Question 21

What U.S. population group is at highest risk for vitamin D deficiency?

 Question 22

What is the alcohol form of vitamin A?

 Question 23

Vitamin D’s specific role in bone health is to assist in                    .

.

 Question 24

Vitamin K participates in the synthesis of prothrombin and                  .

 Question 25

Vitamin A deficiency causes the epithelial cells of the skin to change shape and to secrete the protein

                   .

 Question 26

A child with beaded ribs is likely deficient in which vitamin?

 Question 27

Worldwide, vitamin A deficiency causes about                    children to go blind each year.

Question 28

Which of the following would cause a secondary vitamin K deficiency?

 Question 29

Which of the following is the most reliable source of vitamin D in the diet?

 Question 30

What happens to an animal raised on retinoic acid as its only source of vitamin A?

 Question 31

Which carotenoid has the highest vitamin A activity?

 Question 32

Upon absorption, fat-soluble vitamins travel through the lymphatic system within                before entering the bloodstream.

Question 33

The best way to add antioxidants to the diet is to                 .

 Question 34

Why does vitamin A status depend on the person’s protein status?

Question 35

Which food is a rich source of retinoids?

 Question 36

Which of the following accurately describes fat-soluble vitamins?

 Question 37

What is prothrombin?

Question 38

Which of the following describes the effect of vitamin A in foods?

 Question 39