IGCSE B10.2 Sexual reproduction in plants

What is the function of the sepals?

• Protect the developing flower when it is a bud

• Strengthen the stem of the plant

• Hold the anthers up above the stigma

• Holds the stigma up so insects brush past when collecting nectar

Which structure is likely to be much larger, relative to the size of the flower, in insect-pollinated flowers than in wind-pollinated flowers

• Stigma

• Anther

• Filament

• Petal

Which parts of a flower make up the stamen? Choose all that apply.

• Anther

• Filament

• Stigma

• Style

• Ovary

Which parts of a flower make up the carpel? Choose all that apply.

• Anther

• Filament

• Stigma

• Style

• Ovary

True or false? The stamen is often referred to as the female part of the plant?

• True

• False

True or false? The carpel is often referred to as the female part of the plant?

• True

• False

Which is the male gamete in plants?

• Sperm cells

• Egg cells

• Ovule

• Pollen grain

Which part of a flower produces the female gametes?

• Stigma

• Ovary

• Anther

• Filament

Which part of the flower is sticky in insect-pollinated plants and feathered in wind-pollinated plants, so that it can collect pollen more easily?

• Style

• Stigma

• Anther

• Petals

Which row correctly describes the type of plant reproduction that involves pollination?

• A

• B

• C

• D