Q. No.
The use of aspartame is limited to cold foods and drinks because:
| 1. | It is unstable when heated and decomposes at cooking temperature. |
| 2. | It is 500 times sweeter than cane sugar. |
| 3. | It becomes bitter at cooking temperature. |
| 4. | It reacts with the food at cooking temperature. |
Forces that are involved in holding the drug to the active site of the enzyme are-
1. Ionic bonding
2. Hydrogen bonding
3. Dipole-dipole interaction
4. All of the above
Soaps do not work in hard water because:
| 1. | Calcium and magnesium ions displace sodium or potassium from their salts and form insoluble calcium or magnesium salts of fatty acids. |
| 2. | Sodium or potassium ions displace calcium and magnesium from their salts and form insoluble calcium or magnesium salts of fatty acids. |
| 3. | Calcium and magnesium ions displace sodium or potassium from their salts and form insoluble sodium or potassium salts of fatty acids. |
| 4. | None of the above. |
Drugs can be classified on the basis of:
1. Pharmacological effect.
2. Chemical structure.
3. Molecular targets.
4. All of the above.
A better substitute of Mg(OH)2 as medicine is-
1. Ranitidine
2. Histamine
3. Cyclopam
4. Ipranzoid
The term "target molecules or drug targets" is used in medicinal chemistry, which means
| 1. | Key molecules involved in certain metabolic pathways that result in specific diseases. |
| 2. | Key molecules involved in certain catabolic pathways that result in specific diseases. |
| 3. | Key molecules involved in certain anabolic pathways that result in specific diseases. |
| 4. | None of the above. |
Antacids and antiallergic drugs interfere with the function of histamines but do not interfere with the function of each other because:
| 1. | Antacids and anti-allergic drugs work on the same receptors. |
| 2. | Antacids and anti-allergic drugs work on different receptors. |
| 3. | Antacids and anti-allergic drugs work on different organs. |
| 4. | Antacids and anti-allergic drugs work on the same organs. |
Artificial sweetening agents are:
| 1. | Chemicals that sweeten food and do not add calories to our body. |
| 2. | Chemicals that sweeten food and add calories to our body. |
| 3. | Chemicals that do not sweeten food and do not add calories to our body. |
| 4. | Chemicals that do not sweeten food and add calories to our body. |
The correct statement among the following regarding cationic detergent is/are:
| 1. | These are sodium salts of long chain alcohols or alkylbenzenesulphonic acids. |
| 2. | Sodium 4-(1-dodecyl) benzenesulphonate (SDS) is an example of an anionic detergent. |
| 3. | These are quaternary ammonium salts of acetates, chlorides, or bromides of amine. |
| 4. | None of the above. |
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