In an epigynous flower,what is the orientation of the micropyle?

$A$ mature Polygonum-type embryo sac contains:

Identify the parts of the pistil labeled as $P$,$Q$,and $R$:
Receptive surface for pollen grains $- P$
Elongated slender part of the pistil $- Q$
Basal swollen part of the pistil $- R$
$\quad\quad\quad\quad P \quad\quad\quad Q \quad\quad\quad R$

With a neat,labelled diagram,describe the parts of a typical angiosperm ovule.

The tissue that attaches the ovule to the inner side of the ovary is called .......

The arrangement of nuclei in a typical angiosperm embryo sac is ......... .