14. In flowering plants the gametophytes are smaller than the sporophytes and do

Question

14. In flowering plants the gametophytes are smaller than the sporophytes and do not nourish themselves. the gametophytes are smaller than the sporophytes but are free-living and nourish themselves for most of their lives. a. b. c. the gametophytes are usually larger than the sporophytes, but both gametophytes and d. the gametophytes are usually larger than the sporophytes, and the sporophytes grow out e. the gametophytes and sporophytes are roughly equal in size and each nourish themselves sporophytes nourish themselves. of the gametophytes and are nourished by them.

Explanation / Answer

Ans. Correct option- a. The gametophytes are smaller than the sporophyte and do not nourish themselves.

In flowering plants (angiosperm), the mature embryo sac (1 egg + 2 synergids at micropylar end, 3 antipodal cells at chalazal end, and 1 central – in polygonum type) in ovule represents the female gametophyte. The pollen grain represents male gametophyte.

Both the male and female gametophytes are smaller than the sporophyte (the whole plant body except flower). Moreover, the gametophytes depend on the sporophyte (to which the flowers containing gametophytes are attached) for their nutrition.

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