Control In Flowering Plants

Question 1

What is the male part of the plant called?

Answer 1

The stamen

Question 2

What is the female part of the plant called?

Answer 2

The Carpel

Question 3

Anther

Answer 3

Contains pollen grains - these produces the male gametes

Question 4

Filament

Answer 4

The stalk that supports the anther

Question 5

Stigma

Answer 5

The end bit that the pollen grains attach to.

Question 6

Style

Answer 6

The rod like section that supports the stigma

Question 7

Ovary

Answer 7

Contains the female gametes inside the ovules.

Question 8

What is pollination?

Answer 8

The transfer of pollen from an anther to a stigma, so that the male gametes can fertilise the female gametes in sexual reproduction.

Question 9

What is cross-pollination?

Answer 9

A type of sexual reproduction where pollen is transferred from the anther of one plant to the stigma of another.

Question 10

What does cross pollination rely on?

Answer 10

Insects & the wind

Question 11

How are plants adapted for insect pollination?

Answer 11

Brightly coloured petals - attract insects
Scented flower and nectaries - attract insects
Big sticky pollen grains - grains stick to insects
Stigma is also sticky so any pollen picked up by insects on other plants stick to stigma.

Question 12

How are plants adapted for wind pollination?

Answer 12

Small, dull petals
No nectaries or scents
A lot of small, light pollen grains that can be carried by wind
Long filaments, hanging outside the flower - lots gets blown away
Large feathery stigma to catch pollen as it’s carried by wind. (Hangs outside flower to)