Leys - Vitamins

Question 1

Vitamins A, D, E, and K are ____ soluble

Answer 1

fat

Question 2

Vitamins B and C are _____ soluble

Answer 2

water

Question 3

______ soluble vitamins are more likely to be stored in the body

Answer 3

fat

Question 4

Measurements of vitamin levels in the blood relate more to _____ intake than to _____ _____ ______

Answer 4

recent overal body status

Question 5

____ soluable vitamins act as _____ in many metabolic pathways

Answer 5

water coenzymes

Question 6

The body has no storage capacity for ____ soluble vitamins, except ____

Answer 6

water B12

Question 7

Evidence is emerging that suggests an excess of some ___ vitamins can be toxic

Answer 7

B

Question 8

Most vitamins are ______ before they become active

Answer 8

modified

Question 9

Vitamin ____ is a coenzyme for carboxylations

Answer 9

B1

Question 10

Vitamins ________ are a coenzyme for oxidoreductases

Answer 10

B2/B3

Question 11

Vitamin _______ is a coenzyme for transaminases

Answer 11

B6

Question 12

_______ is a coenzyme for carboxylases

Answer 12

biotin

Question 13

_________ and vitamin _____ are coenzymes for single carbon transfers

Answer 13

folic acid/B12

Question 14

Lack of ______ causes angular stomatitis

Answer 14

riboflavin

Question 15

Eating raw egg whites can cause ____ deficiency

Answer 15

biotin

Question 16

____ ____ is needed, indirectly, for DNA synthesis

Answer 16

folic acid

Question 17

Inhibitors of _____ ________ are used for antibiotics (trimethoprim) and cancer therapy (methotrexate)

Answer 17

folate reduction

Question 18

There is an increased demand of _____ _____ during pregnancy

Answer 18

folic acid

Question 19

____ ____ deficiency is one of the most common deficiencies

Answer 19

folic acid

Question 20

The function of ____ ___ and vitamin ____ are interrelated

Answer 20

folic acid B12

Question 21

Vitamin _____ is concentrated in the _______

Answer 21

B12 liver

Question 22

Vitamin ____ deficiency causes scurvy resulting in defective _______ synthesis, and it also impairs _______ function

Answer 22

C collagen immune

Question 23

______ soluble vitamins are not as readily absorbed as ______ soluble vitamins

Answer 23

fat water

Question 24

Some fat soluble vitamins such as ___ and ___ can be _____ in excess

Answer 24

A and D toxic

Question 25

Vitamin ____ is teratogenic and should be avoided during pregnancy

Answer 25

A

Question 26

______ ____ is a signaling molecule that interacts with ligand-activated transcription factors

Answer 26

retinoic acid

Question 27

Deficiency of vitamin ____ causes night blindness

Answer 27

A

Question 28

Vitamin _____ regulates calciu and phosphorous homeostasis

Answer 28

D

Question 29

The majority of vitamin ___ is produced by UV exposure of the skin; therefore people of northern climates have a hard time getting sufficient amounts in the winter

Answer 29

D

Question 30

Deficiency of vitamin ____ causes demineralization of the bones with increases susceptibility to fractures and caries in children

Answer 30

D

Question 31

Vitamin ____ is necessary for blood coagulation

Answer 31

K

Question 32

C3H6O3

Answer 32

lactic acid