Nutrient basics

Question 1

Vit C fxn

Answer 1

antioxidant
protein/NT metabolism
nonheme iron absorption
collagen synthesis

Question 2

Vit C deficiency causes

Answer 2

scurvy

Question 3

vit C toxicity

Answer 3

incr risk of oxalate kidney stones

Question 4

thiamine fxn

Answer 4

cofactor:

• PPP
• pyruvate DH (lactate)
• synthesis of ACh, GABA

Question 5

thiamine deficiency causes

Answer 5

beriberi

Wernicke-Korsakoff

Question 6

thiamine found in

Answer 6

grains, legumes, pork

Question 7

niacin fxn

Answer 7

NAD, NADPH synthesis

Question 8

niacin deficiency causes

Answer 8

pellegra

Question 9

niacin sythesized from

Answer 9

tryptophan

Question 10

niacin souces

Answer 10

corn

meats, nuts, grains

Question 11

folate fxn

Answer 11

nucleotide synthesis

methylation

Question 12

folate deficiency

Answer 12

• neural tube defects

- megaloblastic anemia

Question 13

B12 fxn

Answer 13

cofactor

• homocysteine –> methionine
• succinyl coA

Question 14

B12 deficiency

Answer 14

megaloblastic anemia
Neuropathies
Glossitis

Question 15

vit A fxn

Answer 15

Vision
Cell differentiation
Immunity
Bone growth

Question 16

vit A deficiency

Answer 16

impaired night vision
impaired vision
impaired immunity

Question 17

vit A toxicity

Answer 17

headache
dizziness
Cirrhosis
Teratogenicity
Osteoporosis

Question 18

vit A sources

Answer 18

retinol: fish, liver, dairy

Carotenoids: fruits, vegetables, fats, oils