Question

In angiosperms, the pollen grains and ovules are developed in specialized structures called.


A sporophylls.

B grains.

C flowers.

D seeds.​

Answer 1

the answer is sporophylls

Answer 2

In angiosperms, the pollen grains and ovules are developed in specialized structures called sporophylls. (option A)

What do ovules and pollen grains represent?

• The ovules and pollen grains represent the female and male gametophyte stage, respectively.

• Each ovule consists of an egg-the female gamete- and each pollen grain consists of 1 vegetative cell and 1 generative cell. The generative cell gives rise to 2 male gametes, which fuse with the egg.

• In angiosperms, the ovule is large and non-motile, while the pollen grains are small and motile.

What are sporophylls?

• Sporophylls are leaves that bear sporangia.

• In angiosperms, which are heterosporous, 2 types of sporophylls are present:

1. Megasporophyll: bears megasporangia, which gives rise to Megaspore Mother Cell, which will eventually give rise to the ovule.
2. Microsporophyll: bears microsporangia, which gives rise to the microspore mother cell, which will give rise to a pollen grain.

Thus, the specialized structures are called sporophylls.

Hence, option A. Sporophyll is correct.