1. | Vitamin B1 | 2. | Vitamin B2 |
3. | Vitamin B12 | 4. | Vitamin B6 |
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
Which one is not a D-sugar:
1. | 2. | ||
3. | 4. |
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. |
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. |
Cheilosis occurs due to the deficiency of:
1. | Thiamine | 2. | Nicotinamide |
3. | Pyridoxamine | 4. | Riboflavin |
Which of the following is a basic amino acid?
1. Alanine
2. Tyrosine
3. Lysine
4. Serine
Which of the following metal ions activates many enzymes participating in the oxidation of glucose to produce ATP and with Na it is also responsible for the transmission of nerve signals:
1. Copper
2. Calcium
3. Potassium
4. Iron