structure of the anther and the ovule Flashcards
1
Q
what is a tapetum
A
found in the anther- acts as a food store and will provide energy for future cell divisions
2
Q
how many pollen sacs are in the anther
A
4
3
Q
outline the structure of the anther
A
the anther consists of 4 pollen sacs surrounded by a protective epidermis layer and each individual pollen sac is surrounded by a fibrous layer
the tapetum lies beneath the fibourous layer
4
Q
what is an integument
A
the two walls surrounding an ovule
5
Q
what is a micropyle
A
a small pore between the integuments of an ovule which allows access of the pollen tube
6
Q
what is the nucellus
A
contain cells that provide nutrition for ovule growth and contains the embryo sac
