Reproduction

The diagram shows an insect-pollinated flower called a lily. Which of these is the name of structure P?

• anther

• filament

• stigma

• style

The diagram shows an insect-pollinated flower called a lily. Which of these is the name of structure Q?

• leaf

• petal

• stem

• style

The diagram shows an insect-pollinated flower called a lily. On which structure do pollen grains germinate?

• P

• Q

• R

• S

What passes down a pollen tube after pollination?

• female nucleus

• male nucleus

• ovule

• pollen grain

The diagram shows a broad bean seed. Part of it has been cut away to show the internal structure. Which parts make up the complete embryo?

• radicle, plumule, cotyledons and testa

• radicle, plumule and cotyledons only

• radicle and plumule only

• radicle only

What are two female parts of a flower?

• anther and seed

• sepal and petal

• stamen and carpel

• stigma and style

Cell X contains 24 chromosomes. It divides by mitosis to produce cells Y and Z. How many chromosomes does cell Z contain?

• 12

• 24

• 46

• 48

What is the function of the sepals of most flowers?

• to attract insects

• to produce pollen

• to protect flower buds

• to receive pollen

What describes cross-pollination?

• when one flower pollinates a different flower on a different plant of the same species

• when one flower pollinates a different flower on the same plant

• when one flower pollinated a flower of a different species

• when one flower pollinates the same flower

What is pollination?

• fusion of a pollen grain with an ovule

• fusion of a pollen grain with an ovum

• transfer of pollen from an anther to a stigma

• transfer of pollen from a stigma to an anther