Q. No.
The destruction of the biological nature and activity of proteins by heat or chemical agent is called :-
| 1. | Dehydration | 2. | Denaturation |
| 3. | De-nitrogenation | 4. | Deamination |
In humans, the main oxygen carrier in the blood is:
1. Hemocyanin
2. Proteins
3. Haemoglobin
4. Both microorganisms and haemoglobin.
The central dogma of molecular genetics states that the genetic information flows from:
1. amino acid - proteins - DNA
2. DNA - carbohydrates - proteins
3. DNA - RNA - proteins
4. DNA - RNA - Carbohydrates
Which of the following statements is not correct?
| 1. | Ovalbumin is a simple food reserve in egg white. |
| 2. | Blood proteins thrombin and fibrinogen are involved in blood clotting. |
| 3. | Denaturation makes the proteins more active. |
| 4. | Insulin maintains the sugar level in the blood of the human body. |
| 1. | β -glycosidic bond | 2. | Peptide bond |
| 3. | Dative bond | 4. | α -glycosidic bond |
| 1. | The sugar component in RNA is ribose and the sugar component in DNA is 2'-deoxyribose. |
| 2. | The sugar component in RNA is arabinose and the sugar component in DNA is ribose. |
| 3. | The sugar component in RNA is 2'-deoxyribose and the sugar component in DNA is arabinose. |
| 4. |
The sugar component in RNA is arabinose and the sugar component in DNA is 2’-deoxyribose.
|
The disease caused by deficiency of vitamin B1 is:
| 1. | Convulsions | 2. | Beri-beri |
| 3. | Cheilosis | 4. | Sterility |
Which one of the following vitamins is water-soluble?
| 1. | Vitamin-B | 2. | Vitamin-E |
| 3. | Vitamin-K | 4. | Vitamin-A |
Which of the following correctly describes the hydroxyl group distribution in glucose, in addition to the aldehyde group?
1. One secondary-OH and four primary-OH
2. One primary-OH and four secondary-OH
3. Two primary-OH and three secondary-OH
4. Three primary-OH and two secondary-OH
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