Which part of ovule forms perisperm ?

Perisperm is:

Why is apple called a false fruit ? Which part (s) of the flower forms the fruit ?

From which part of spermatid is acrosome formed?

_______ is the central part of ovule made up of diploid mass of tissue.

Assertion:The placentation in which the placenta forms a ridge along the ventral suture of ovary and ovules are borne on this ridge forming two rows is called parietal placentation. Reason:The marginal placentation has ovules developed on the inner wall of the ovary or on peripheral part.

An example of a seed with endosperm perisperm and caruncle is