Question

What is the significance of the following plant parts?

1. microsores
2. male sporophyte and
3. female gametophyte

Answer 1

1. Microspores develop into pollen grains, the male gametophytes. 
2. The male sporophyte is the diploid plant generation; its anthers produce microspores by meiosis. 
3. The female gametophyte (embryo sac) bears the egg cell and central cell, and is the site of fertilisation and early post-fertilisation development.