Q. No.
The Fisher presentation of D-glucose is given below:
The correct structure(s) of -L-glucopyranose is/(are):
1.
2.
3.
4.
The Fisher presentation of D-glucose is given below:
The correct structure(s) of -L-glucopyranose is/(are):
| 1. | |
2. | |
| 3. | |
4. | |
The structural feature that distinguishes proline from other natural α-amino acids is:
1. It is optically inactive.
2. It contains an aromatic group.
3. It is a dicarboxylic acid.
4. It is a secondary amine.
What is the major product obtained when D-Glucose is treated with dilute nitric acid (dil. HNO₃)?
1. D-Gluconic acid
2. D-Glucitol
3. D-Glucaric acid
4. D-Glucuronic
| Assertion (A): | Deoxyribose, , is not a carbohydrate. |
| Reason (R): | Carbohydrates are hydrates of carbon so compounds that follow the formula are carbohydrates. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are False. |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Which of the following is not a correct statement?
| 1. | α-carbon of α-amino acid is asymmetric except for glycine. |
| 2. | All proteins of the human body are found in L-form. |
| 3. | The human body can synthesize all the proteins it needs. |
| 4. | At pH = 7, both amino and carboxylic groups exist in ionized form. |
Which of the following vitamin is helpful in delaying blood clotting?
1. Vitamin C
2. Vitamin B
3. Vitamin E
4. Vitamin K
A nitrogenous base is present in RNA nucleotides but not in DNA nucleotides. How many oxygen atoms does this base contain?
| 1. | Three (3) | 2. | Two (2) |
| 3. | Four (4) | 4. | One (1) |
1. Retarded growth
2. Digestive disorders
3. Burning sensation of skin
4. Fissuring at the corners of the mouth
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