Vitamin E

Question 1

Vitamin E name

Answer 1

Tocopherols

Question 2

Who observed that on certain purified diets rats grew but did not reproduce?

Answer 2

Mattill

Question 3

Who suggested a vitamin was the essential dietary factor?

Answer 3

Evans

Question 4

Who coined the name Vitamin E?

Answer 4

Sure

Question 5

What is the most active form of vit. E?

Answer 5

alpha tocopherols

Question 6

What are the multiple forms of tocopherols?

Answer 6

alpha, beta, y, S

Question 7

Is vitamin E fat soluble or water soluble?

Answer 7

fat soluble
-unsaponifiable
-heat stable

Question 8

Vitamin E is the easiest vitamin to ________

Answer 8

oxidize

Question 9

Why is vit. E called the antisterility vitamin?

Answer 9

-causes death and reabsorption in females
-causes degenerative changes in testes, irreversible sterility in males (Vit. A sterility is reversible)

Question 10

Vitamin E is a natural ________

Answer 10

antioxidant (saves vit. A, etc.)

Question 11

Muscular dystrophy caused by vitamin E deficiency symptoms:

Answer 11

-weakness, paraylsis, degeneration, creatine excretion increase
-stiff lamb disease in sheep
-white-muscle disease in cows

Question 12

What does vitamin E deficiency in dairy cows cause?

Answer 12

heart muscle damage

Question 13

What does vitamin E deficiency in chicks cause?

Answer 13

-nutritional encephalomalacia
(“crazy chick disease”)
-Executive diathesis

Question 14

Nutritional encephalomalacia symptoms

Answer 14

uncoordinated gait, prostration, brain lesions

Question 15

Exudative diathesis symptoms

Answer 15

-a hemorrhagic disease of chicks
-also responds to Se treatment
-severe edema

Question 16

What does vitamin E deficiency cause in turkeys?

Answer 16

gizzard erosion (breakdown of smooth muscle)

Question 17

Functions of vitamin E are closely related to what mineral?

Answer 17

Selenium

Question 18

Antioxidant properties of vit. E

Answer 18

-protects certain dietary constituents from oxidative destruction such as carotene in intestines
-prevents formation of peroxides from the unsaturated fatty acids in body tissues (would destroy structural integrity of cells)

Question 19

What fats are easily destroyed?

Answer 19

rancid fats

Question 20

Tocopherols are resistant to _____ but easily _______

Answer 20

heat; oxidized

Question 21

Where can the body store vit. E?

Answer 21

liver