Vitamin C

Question 1

Vitamin C requires what enzyme needed for synthesis?

Answer 1

gulonolactone oxidase

Question 2

What are some common food sources of vitamin C?

Answer 2

Papaya
Oranges / Juice
Cantaloupe
Cauliflower
Broccoli
Brussel Sprouts
Green Peppers
Grapefruit / Juice
Kale
Lemons
Strawberries

Question 3

Vitamin C can be destroyed by?

Answer 3

Light, Heat, and Oxidation

+ Alkaline Solutions

Question 4

Vitamin C is relativley stable in what solutions

Answer 4

Acidic Solutions

Question 5

What is a good color distinction for identifying vitamin C sources?

Answer 5

Bright Orange/Red/Pink fruits & veggies

Question 6

Vitamin C functions as an antioxidant how?

Answer 6

(Reducing Agent) Reverse oxidation by donating electrons and hydrogen ions to decrease free radicals & reactive oxygen species.

Question 7

Vitamin C functions in the synthesis of ______ through hydroxylation reactions of proline and lysine?

Answer 7

Collagen

Question 8

Vitamin C functions in the synthesis of ______, which is involved in lipid metabolism?

Answer 8

Carnitine

Question 9

Vitamin C functions in the synthesis of ______ from the product of phenylalanine?

Answer 9

Tyrosine

Question 10

Tyrosine synthesis is associated with?

Answer 10

Neurotransmitter synthesis.

Question 11

Vitamin C has been used in the treatment of?

Answer 11

Cold & Cancer

Question 12

Vitamin C has been used in cases of ______ through it’s properties of collagen synthesis?

Answer 12

Wound Healing

Question 13

Vitamin C has been known to enhance _____ absorption?

Answer 13

Iron

Question 14

Vitamin C has been demonstrated to be effective in reducing ____ disease?

Answer 14

CV Disease

Question 15

Vitamin C has been known to help prevent the development of?

Answer 15

Cataracts

Question 16

One disease state of vitamin C deficiency associated with bleeding gums, petechia, and perifolliculosis is?

Answer 16

Scurvy

Question 17

What is the treatment dose for Scurvy?

Answer 17

10 mg adequate for prevention

Question 18

What are some groups at risk of vitamin C Deficiency?

Answer 18

Smokers, Elderly, Diabetics, Alcoholics

Question 19

For smokers, the RDA for vitamin C is greater by how much?

Answer 19

35 mg/day

Question 20

Symptoms of vitamin C toxicity include?

Answer 20

Rebound scurvy, renal stones, diarrhea

Question 21

Renal stones as a symptom of vitamin C toxicity stem from?

Answer 21

Oxalate and Urate

Question 22

Vitamin C helps reduce vitamin ____ to a reduced form?

Answer 22

Vitamin E

Question 23

Vitamin C helps with the excretion of?

Answer 23

Heavy Metals

Question 24

Vitamin C helps with increased _____ absorption and decreased ____ absorption?

Answer 24

Increased Iron
Decreased Coppoer

Question 25

Vitamin C is typically assessed through?

Answer 25

Blood Serum Plasma levels of ascorbate

Question 26

Vitamin C assessment may can also be measured in?

Answer 26

White blood cells.