Lecture 5-6

Question 1

What is an Ovule?

Answer 1

A structure that combines integuments(s), megametophyte and nucellus (remaining part of the megasporangium).

Question 2

What is the Megasporangium?

Answer 2

It is a part of the Ovule and its purpose is to give rise to and contain the egg.

Question 3

What is the Megaspore?

Answer 3

Part of the Ovule. Gives rise to the female gametophyte.

Question 4

Pollination vs. Fertilization?

Answer 4

P - the process where pollen grains are transferred from the anther (male part) to the stigma (female part) of either the same flower or a different one.

F - the event following pollination. This is where the male gamete with the pollen grain combines with the female gamete, resulting in the formation of a seed.

Question 5

Ovule vs. Seed

Answer 5

A seed is formed by ovule maturation after fertilization. It is a unit of perennation and dispersal in spermatophytes.

Question 6

What advantage do angiosperms have in the reproductive phase of development compared to gymnosperms?

Answer 6

Angiosperms produce flowers or fruit which help to ensure pollination and which also help to protect the ovule and developing embryo.