1. | It results due to change of temperature and pH. |
2. | It results in the loss of biological activity of proteins. |
3. | A protein is formed from amino acids linked by peptide bonds. |
4. | Uncoiling of the helical structure takes place. |
Which one is not a D-sugar:
1. | 2. | ||
3. | 4. |
Statement I: | A unit formed by the attachment of a base to 1' position of sugar is known as a nucleoside. |
Statement II: | When nucleoside is linked to phosphorous acid at 5' position of sugar moiety we get nucleotide. |
1. | Statement I is false but Statement II is true. |
2. | Both Statement I and Statement II are true. |
3. | Both Statement I and Statement II are false. |
4. | Statement I is true but Statement II is false. |
1. | Thiamine | 2. | Nicotinamide |
3. | Pyridoxamine | 4. | Riboflavin |
The RBC deficiency is a deficiency disease of:
1. Vitamin B1
2. Vitamin B2
3. Vitamin B12
4. Vitamin B6
1. | \(\text{A}\) and \(\text{D}\) | 2. | \(\text{B}\) and \(\text{E}\) |
3. | \(\text{E}\) and \(\text{D}\) | 4. | \(\text{B}\) and \(\text{C}\) |
List-I (Vitamins) | List-II (Deficiency/other name/ property) | ||
A. | Vitamin K | I. | RBC deficient in haemoglobin |
B. | Vitamin \(\text{B}_{12}\) | II. | Bleeding gums |
C. | Vitamin C | III. | Thiamine |
D. | Vitamin \(\text{B}_1\) | IV. | Fat soluble |
Which of the following statement is not true about glucose?
1. It is an aldohexose.
2. It contains five hydroxyl groups.
3. It is a reducing sugar.
4. It is an aldopentose.
Deficiency of which vitamin causes osteomalacia ?
1. | Vitamin A | 2. | Vitamin D |
3. | Vitamin K | 4. | Vitamin E |
The reaction of concentrated sulphuric acid with carbohydrates (C12H22O11) is an example of:
1. Dehydration
2. Oxidation
3. Reduction
4. Sulphonation