Pollination

Question 1

What do anthers have?

Answer 1

Lines along which the anther will split

Question 2

What do anthers in a young flower contain?

Answer 2

Pollen sacs with developing pollen grains

Question 3

How are pollen grains formed?

Answer 3

When cells around the edge of the pollen sac divide

Question 4

How is pollen released?

Answer 4

The anther splits open and releases pollen

Question 5

Why do pollen grains have hard coats?

Answer 5

To survive harsh conditions. Coat protects the male gametes contained inside as the pollen grain is transported

Question 6

How does fertilisation in plants happen?

Answer 6

The nucleus of the pollen grain fuses with the nucleus of the ovule

Question 7

What happens after pollination?

Answer 7

If the polen grain landed on the right stigma, it begins to grow a pollen tube

Question 8

How does the pollen tube grow through the style and stigma?

Answer 8

It secretes an enzyme to digest a path through the style

Question 9

What is a micropyle?

Answer 9

A small hole in the ovule

Question 10

What happens once the pollen tube grows through the micropyle into the ovule?

Answer 10

The pollen nucleus travels along the tube into the ovule, where it fuses with the ovule nucleus.ONE POLLEN CAN FERTILISE JUST ONE OVULE