Vitamin B3- metabolism
Q. 1
Niacin is required for growth of – Oxidase
| A |
M. tuberculosis |
|
| B |
M. kansasii |
|
| C |
M. Scrofuloderma |
|
| D |
M. Avium |
Q. 1
Niacin is required for growth of – Oxidase
| A |
M. tuberculosis |
|
| B |
M. kansasii |
|
| C |
M. Scrofuloderma |
|
| D |
M. Avium |
Ans.
A
D
C
C
Explanation:
Ans. is ‘a’ i.e., M. tuberculosis
Q. 2
One mg. of Niacin is produced by…………………….. mg. of Tryptophan-
| A |
22 |
|
| B |
37 |
|
| C |
55 |
|
| D |
60 |
Q. 2
One mg. of Niacin is produced by…………………….. mg. of Tryptophan-
| A |
22 |
|
| B |
37 |
|
| C |
55 |
|
| D |
60 |
Ans.
Explanation:
Ans. is ‘d’ i.e., 60
About 60 mg of tryptophan is required to result in I mg of niacin.
Q. 3
Niacin is synthesized from ‑
| A |
Arginine |
|
| B |
Histidine |
|
| C |
Tryptophan |
|
| D |
Tyrosine |
Q. 3
Niacin is synthesized from ‑
| A |
Arginine |
|
| B |
Histidine |
|
| C |
Tryptophan |
|
| D |
Tyrosine |
Ans.
Explanation:
Q. 4
Niacin is derived from which amino acid?
| A |
Tyrosine |
|
| B |
Phenylalanine |
|
| C |
Tryptophan |
|
| D |
Methionine |
Q. 4
Niacin is derived from which amino acid?
| A |
Tyrosine |
|
| B |
Phenylalanine |
|
| C |
Tryptophan |
|
| D |
Methionine |
Ans.
Explanation:
