Steroid And Fat-Soluble Vitamins

Question 1

Progesterone

Answer 1

From corpus luteum and placenta, chief hormone of pregnancy

Question 2

Estradiol

Answer 2

Made by aromatase from testosterone in the ovaries

Question 3

Testosterone

Answer 3

Made by testes, responsible for secondary sex characteristics

Question 4

Aromatase

Answer 4

Catalyzes the reaction from testosterone to estradiol

Question 5

Aldosterone

Answer 5

Regulate electrolyte resorption in th kidney

Question 6

Cortisol

Answer 6

Regulates metabolism, made by the adrenal cortex

Question 7

Fat soluble vitamins

Answer 7

A, D, E, K

Question 8

Vitamin that can be synthesized De Novo

Answer 8

Vitamin D

Question 9

3 forms of vitamin A

Answer 9

Trans-retinal
Retinol
Retinoic acid

Question 10

Retinoic acid

Answer 10

Hormone important in growth and differentiation, works like a steroid receptor

Question 11

Retinal

Answer 11

Binds to ops in to form rhodopsin, first signal in vision

Question 12

Vitamin A deficiency

Answer 12

Night blindness

Question 13

Vitamin D deficiency

Answer 13

Made biosynthetically or from diet, results in weak bones

Question 14

Order of vitamin D synthesis

Answer 14

Skin (triggered by UV light), Liver, Kidney (creates most active 1,25 (OH)2D3

Question 15

Vitamin D mechanism of action

Answer 15

Activates vitamin D dependent transcription factor that mediates calcium absorption in the gut

Question 16

Vitamin E

Answer 16

Alpha-tocopherol is an important antioxidant that terminates free radical oxidation of unsaturated FAs

Question 17

Vitamin K

Answer 17

Mediates clotting by acting as a cofactor for Corboxylase of glutamate

Question 18

Warfarin

Answer 18

Anti coagulant that can be lethal at high levels