Sexual reproduction in flowering plants | Basic Level Test | Topic 1: Structure of flower

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Topic 1: Structure of flower

Each question carries 4 scores. For incorrect answer, 1 score will be deducted.

1

Androecium consists of a whorl of

(a) Stamens (b) Anther (c) Stigma (d) Pistils

2

The ................ nourishes the developing pollen grains.

(a) Endothecium (b) Middle layers (c) Anther (d) Tapetum

3

As the anthers mature and dehydrate, the microspores dissociate each other and develop into

(a) Megaspores (b) Microspore tetrads (c) Pollen grains (d) Microsporangium

4

Exine is the hard outer layer of pollen grain made up of

(a) Cellulose (b) Sporopollenin (c) Pectin (d) Lignin

5

A matured pollen grain contains 2 cells, vegetative cell and ...................

(a) Sporogenous cells (b) Generative cell (c) Pollen mother cells (d) Megaspore mother cell

6

Landing platform for pollen grains is called

(a) Stigma (b) Style (c) Anther (d) Ovary

7

Enclosed within the integuments of ovule, there is a mass of cells called

(a) Chalaza (b) Hilum (c) Nucellus (d) Funicle

8

Megaspore mother cell undergoes meiosis to produce ............. megaspores.

(a) 8 (b) 6 (c) 4 (d) 2

9

Female gametophyte is also known as

(a) Ovarian cavity (b) Micropyle (c) Pollen sac (d) Embryo sac

10

How many nuclei are present in a typical mature embryo sac?

(a) 8 (b) 6 (c) 4 (d) 2

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