Path 1 Quiz 5 C Vitamin

Question 1

Vitamin C is known as

Answer 1

Ascorbic Acid

Question 2

Vitamin C can not be produced in the body T/F

Answer 2

True

Question 3

What are the functions of Vitamin C

Answer 3

Hydroxylation of pro collagen
Synthesis of Collagen peptides
Free-radical scavenger - powerful antioxidant

Question 4

What is proline?

Answer 4

it is a Amino Acid that is a major constitute of most proteins esp collagen

Question 5

Pro collagen is full of proline - proline is hydroxylated by vitamin C to become

Answer 5

Hydroxyproline

Question 6

What is hydroxyproline’s function?

Answer 6

Makes CT strong - increases the tensile strength

Question 7

If proline is not hydroxylated this results in

Answer 7

weak proline = collagen is weak - esp. in blood vessels which can lead to bleeding

Question 8

Vitamin C is a powerful antioxidant is works with what other vitamin and trace mineral

Answer 8

Vitamin E
selenium
*prevents the destruction of cell membrane
* reduces oxidation of LDLS decreasing atherosclerosis

Question 9

A deficiency of Vitamin C will lead to what disease?

Answer 9

Scurvy

Question 10

List the 3 components of Scurvy that a pt. would present with via Vitamin C deficiency

Answer 10

1) Bleeding Diathesis:
- Petchiae and ecchymosis
- bleeding gums
- sub periosteal hematomas - joints = hemarthrosis = secondary OA
- Retrobulbar hematomas
2) Skeletal changes
- Poor quality of osteoid matrix = bowing legs
- shortening of alveoli = tooth loss
- protrusion ribs and sternum - pigeon chest
- depression of the sternum
3) Would healing
- delayed and takes longer
- Vitamin C is administered post surgery to speeds up repair

Question 11

Too much vitamin C can result in

Answer 11

elimination of vitamin C (1500 mg)

Question 12

What regulates the amount of Vitamin C in the body?

Answer 12

Kidney

Question 13

What is the normal amount of vitamin C

Answer 13

60 mg