278046
Assertion : Secondary metabolites of plants can be useful for human.
Reason : Abrin and ricin are toxins.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Secondary metabolites are organic compounds produced by plants which are not directly involved in the normal growth, development or reproduction of the organism. Ricin and abrin are potent biological toxins that are derived from plant sources (castor beans and rosary peas respectively). More is known about ricin toxicity; however, abrin toxicity is similar in its mechanism of action. In the body, these toxins inhibit protein synthesis leading to cell death.