Select the correct option based on statements below:
Assertion (A): | Penicillin (G) is an antihistamine. |
Reason (R): | Penicillin (G) is effective against gram-positive as well as gram-negative bacteria. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Select the correct option based on statements below:
Assertion (A): | Competitive inhibitors compete with the natural substrate for their attachment to the active sites of enzymes. |
Reason (R): | In competitive inhibition, the inhibitor binds to the allosteric site of the enzyme. |
1. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
2. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
3. | Both (A) and (R) are false. |
4. | (A) is true but (R) is false. |
Depression is caused by:
1. High level of adrenaline
2. High level of noradrenaline
3. Low level of noradrenaline
4. Low level of adrenaline
A molecule among the following that cannot act as broad-spectrum antibiotic -
1) Azithromycin.
2) Chloroamphenicol
3) Ampicillin
4) Penicillin
A better substitute of Mg(OH)2 as medicine is-
1. Ranitidine
2. Histamine
3. Cyclopam
4. Ipranzoid
The compound that cannot be used as a food preservative is -
1. Table salt
2. Black pepper
3. Vegetable oil
4. Sodium benzoate
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. |
Match the classes of drugs as given in Column I with their action given in Column II.
Column I | Column II |
A. Analgesics | 1. Painkilling effect |
B. Antiseptics | 2. Treatment of acidity |
C. Antihistamines | 3. Applied to diseased skin surfaces |
D. Antacids | 4. Prevents the interaction of histamine with its receptor |
Codes
A | B | C | D | |
1. | 2 | 3 | 4 | 1 |
2. | 3 | 1 | 4 | 2 |
3. | 1 | 3 | 4 | 2 |
4. | 4 | 3 | 2 | 1 |
The correct statement among the following regarding birth control pills is:
1. | They contain estrogen only. |
2. | They contain progesterone only. |
3. | They contain a mixture of estrogen and progesterone derivatives. |
4. | Progesterone enhances ovulation. |
The incorrect statement among the following is:
1. | Some antiseptics can be added to soaps. |
2. | Dilute solutions of some disinfectants can be used as antiseptic. |
3. | Disinfectants are antimicrobial drugs. |
4. | Antiseptic medicines can be ingested. |