Plant biodiversity

No vascular tissue?

• Pteridophytes

• Angiosperms

• Bryophytes

• Gymnosperms

The sori of Pteridopytes ...

• produce heterosporous spores.

• contain a sporangium.

• grow underneath leaves.

• are covered by indusium.

Part of Bryophyte that has haploid cells?

• Rhizoid

• Root

• Leaf

• Seta

Gametophyte of Pteridophyte ...

• is the short generation.

• produces spores.

• is haploid.

• has no vascular tissue.

Microspore ...

• develops into female gametophyte.

• are produced by male cones.

• contains eggs.

• are produced by pollen.

How many groups of Gymnosperms are there?

• 1

• 3

• 4

• 6

Monocotyledonous plants have ...

• 2 cotyledons.

• adventitious roots.

• parallel veins.

• have flower parts in 5.

What is the part of the flower that collects pollen?

• Anther

• Stigma

• Petal

• Ovary

Double fertilisation in Angiosperms take place so that ...

• 2 sperms can fuse with 2 eggs.

• 1 sperm fuse with an egg and 1 sperm fuse with an endosperm.

• 1 sperm fuse with an egg and 1 sperm fuse with a polar egg.

• 1 sperm fuse with an egg and 1 sperm fuse with polar nuclei.

Wind pollinated flowers ...

• are large.

• have large anthers.

• produce nectar.

• have petals.