Discussion
Match List-I with List-II and select the correct answer from the codes given below :
| List-I | List-II |
|---|---|
| (a) Amphetamines | (1) Heart rate |
| (b) Beta-blockers | (2) Alertness |
| (c) Erythropoietin | (3) Urine formation |
| (d) Alkaline salts | (4) Haemoglobin |
| (5) pH level |
Codes :
Answer: A
The code is a-2, b-1, c-4, d-5.
- Amphetamines are stimulants that raise alertness and mask fatigue.
- Beta-blockers lower the heart rate and steady tremor, which is why they are banned in shooting and archery.
- Erythropoietin stimulates red cell production and raises haemoglobin, increasing oxygen-carrying capacity.
- Alkaline salts such as sodium bicarbonate raise blood pH and buffer acid during intense exercise.
Options B, C and D each pair a substance with urine formation or swap haemoglobin and pH, so only A matches every pair.
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