LECTURE 28 FAT SOLUBLE VITAMINS

Question 1

these are molecules that look like PGs with one leg removed?

Answer 1

retinoids

Question 2

this is the active metabolite of retinol in functions related to reproduction, growth, and maintenance of epithelium

Answer 2

retinoic acid

Question 3

the receptors of this vitamin is located in the nucleus and regulates specific gene expression

Answer 3

retinoic acid

Question 4

what is the active form of retinoic acid for vision?

Answer 4

retinol

Question 5

this can be cleaved in the intestine to yield 2 retinol molecules

Answer 5

beta-carotene

Question 6

what transports retinol?

Answer 6

retinol binding protein

Question 7

night blindness and hypervitaminosis A?

Answer 7

vitamin A

Question 8

this vitamin acts as a steroid hormone?

Answer 8

vitamin D

Question 9

this vitamin plays an important role in regulating plasma Ca2+ and phosphate?

Answer 9

vitamin D

Question 10

deficiency of this vitamin leads to rickets and osteomalacia?

Answer 10

vitamin D

Question 11

this is the most toxic of all vitamins causing hypercalcemia?

Answer 11

vitamin D

Question 12

this is the most active of the 8 tocopherols?

Answer 12

vitamin E

Question 13

this vitamins major role is in anti oxidation?

Answer 13

vitamin E

Question 14

deficiency in this vitamin leads to abnormal lipid absorption and transport. Rare

Answer 14

vitamin E

Question 15

this vitamin is important in blood clotting?

Answer 15

vitamin K

Question 16

what med inhibits blood clotting?

Answer 16

warfarin

Question 17

deficiency in this vitamin leads to hypoprothrombinemia ? what also causes this?

Answer 17

vitamin K

cephalosporins, so vit K supplements are used