OnlineCBT
Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS
हिन्दीConsider the following statements regarding pollen grains: (a) The hard outer layer called exine is made up of sporopollenin. (b) Sporopollenin is readily degraded by strong acids and alkali. (c) Germ pores are apertures on the exine where sporopollenin is absent. (d) The inner wall called intine is a thin and continuous layer made up of cellulose and pectin. Which of the above statements are correct?
Correct answer · Option 2
(a), (c) and (d) only
Explanation
Statement (b) is incorrect because no enzyme or chemical like strong acids and alkalis can degrade sporopollenin. Statements (a), (c), and (d) are correct.
