Question

Write about the structure of embryo sac?

Answer 1

$\huge{Embryo sac}$

At the centre of each ovule there is a microscopic embryo sac filled with food and water the embryo sac is composed of gametophyte cells at the time of fertilization it has 7778 nuclei of these three cells are at the top of it that form antipodals help in nutrition at the bottom of the other three cells form to Saina Gates and one Excel polar nuclei are located at the centre as a single fission nucleus .

Answer 2

$\mathfrak{\huge{\red{ANSWER}}}$

✿The single functional megaspore develops into the female gametophyte or embryo sac.

✿ This kind of development is called monosporic development.

✿The nucleus of the functional megaspore divides mitotically to form 2 nuclei, which move towards the opposite ends, forming a 2-nucleate embryo sac.