Discussion
Match Group I (plant natural product), Group II (class) and Group III (source plant) in CORRECT combination.
| Group-I | Group-II | Group-III |
|---|---|---|
| P. Reserpine | I. Stilbenes | a. Manihot esculanta |
| Q. Resveratrol | II. Cyanogenic glycoside | b. Crocus sativus |
| R. Picrocrocin | III. Alkaloid | c. Vitis vinifera |
| S. Linamarin | IV. Monoterpene glycoside | d. Rauwolfia serpentina |
Answer: D
The correct combination is P-III-d, Q-I-c, R-IV-b, S-II-a.
- Reserpine is an indole alkaloid (III) from Rauwolfia serpentina (d), the Indian snakeroot, used as an antihypertensive.
- Resveratrol is a stilbene (I) found in grapes, Vitis vinifera (c).
- Picrocrocin, the bitter principle of saffron, is a monoterpene glycoside (IV) from Crocus sativus (b).
- Linamarin is a cyanogenic glycoside (II) of cassava, Manihot esculenta (a), which is why cassava must be processed before eating.
Option A calls reserpine a stilbene and resveratrol a cyanogenic glycoside, option B makes resveratrol a monoterpene glycoside from saffron, and option C gives reserpine to cassava.
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