Structure Of The Ovule Flashcards
How many ovules does each ovary contain?
One or more ovules
Describe the structure of the ovule.
5
It has two walls called integuments
The integuments have a small opening called the micropyle
A pollen tube can enter through the micropyle
The bulk of the ovule consists of diploid nucleus cells that supply nutrients for later growth in the ovule
One cell, low down in the ovule is called the megaspore mother cell or the embryo sac mother cell
How many walls does an ovule have?
Two
What are the two walls of the ovule called?
Integuments
What are integuments?
The two walls of the ovule
What is a micropyle?
A small opening in the integuments through which the pollen tube can enter
What is the function of the micropyle?
To allows the pollen tube to enter
What does the bulk of the ovule consists of?
Diploid nucleus cells
What is the function of the diploid nucleus cells found in the bulk of the ovule?
They supply nutrients for later growth in the ovule
What is the opening in the integuments called?
Micropyle
What supplies nutrients for later growth in the ovule?
Diploid nucleus cells
Where is the megaspore mother cell found?
Low down in the ovule
What particular cell is found low down in the ovule?
The megaspore mother cell
What is the megaspore mother cell also called?
The embryo sac mother cell
