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Chapter 9 : Sexual reproduction in flowering plants

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

The primary function of these parts of the flower is

a)

reproduction

b)

photosynthesis

c)

germination

d)

metamorphosis

2.

The male parts of a flower are ______________.

a)

Style

b)

Anther

c)

Filament

d)

Ovary

3.

The ___________ of one flower receives pollen grains from another flower.

a)

anther

b)

ovary

c)

style

d)

stigma

4.

The female parts of a flower are ____________________.

a)

ovary

b)

ovule

c)

anther

d)

stigma

5.

In nature, flowers are pollinated by ____________ and _______________.

a)

wind

b)

water

c)

butterflies

d)

humans

6.

Pollination is the process of transferring pollen from the anther of one flower to the ______________ of another flower.

a)

filament

b)

style

c)

stigma

d)

ovary

e)

ovule

7.

After fertilization, each _______forms a seed, while each _________forms a fruit.

a)

ovary ... ovule

b)

ovule ... ovary

c)

egg ... ovary

d)

pollen ... ovary

e)

ovary ... pollen

8.

The cell that gives rise to male gametes in the pollen grain is

a)

Vegetative Cell

b)

Generative Cell

9.

The ploidy of generative cell in a pollen grain is

a)

haploid

b)

diploid

c)

triploid

d)

tetraploid

10.

Which nucleus responsibles in the formation of pollen tube from the pollen grain?

a)

Generative nucleus

b)

Tube nucleus

c)

Polar nuclei

d)

Triploid nuclei

11.

The ovule of an angiosperm is technically equivalent to

a)

Megasporangium

b)

Megasporophyll

c)

Megaspore Mother Cell

d)

Megaspore

12.

Functional megaspore in an angiosperm develops into

a)

Ovule

b)

Endosperm

c)

Embryo sac

d)

Embryo

13.

How many microspore mother cells are required to produce 1000 microspores/pollen grains?

a)

100

b)

150

c)

200

d)

250

14.

Pollen grains must be transferred from the anther to the stigma of the same flower or another flower. This process is called . . . .

a)

pollination

b)

fertilisation

c)

germination

d)

condensation

15.

A plant has 24 chromosomes in its microspore mother cell. The number of chromosomes in its endosperm will be

a)

36

b)

24

c)

12

d)

48

16.

A typical angiosperm embryo sac is:

a)

7 Celled and 8 nucleate

b)

8 celled and 7 nucleate

c)

8 celled 8 nucleate

d)

7 celled 7 nucleate

17.

Which of the following represents the female gametophyte in angiosperm?

a)

Embryo sac

b)

Embryo

c)

Synergids

d)

eNDOSPERM

18.

which of the following is true about double fertilization in flowering plants?

a)

two sperm nuclei fuse with one egg cell

b)

two sperm nuclei fuse with two egg cell

c)

two sperm nuclei fuse with an egg cell and polar nuclei respectively

d)

one sperm nucleus fuse with an egg cell and a polar nucleus

19.

The diagram shows a longitudinal section through the ovule of an angiosperm. The role of Y is to

a)

fuse with a male nucleus to form the endosperm

b)

fuse with a male nucleus to form the cotyledon

c)

fuse with a male nucleus to form the embryo

d)

support the position of the ovum and disintegrate after fertilization

20.

When the pollen grain lands on the stigma and starts to grow, the first action is that

a)

a male nucleus fuses with the endosperm nucleus

b)

a double fertilization takes place

c)

the generative nucleus divides to form two male gametes

d)

the zygote divides to form a row of cells

21.

One of the 3 haploid cells at the other end of the embryo sac will become the egg cell. The other two haploid cells are the ...

a)

synergid cells

b)

antipodal cells

c)

polar nuclei

d)

zygote

22.

Inside the microsporangium, there is a diploid cell known as,

a)

megasporangium

b)

microspore

c)

microsporocyte

d)

generative cell

23.

State the ploidy level of a microsporocyte.

a)

haploid

b)

diploid

c)

triploid

d)

tetraploid

24.

How many times of mitosis occurs to form an embryo sac?

a)

1

b)

2

c)

3

d)

4

25.

Name 2 nuclei in an embryo sac that involved in fertilisation with male gametes?

a)

Antipodal cell & synergid cell

b)

Polar nuclei & antipodal cell

c)

Synergid cell & egg cell

d)

Egg cell & polar nuclei

26.

In the formation of embryo sac, only ............... megaspore (n) is developed into 8 nuclei.

a)

1

b)

2

c)

3

d)

4

27.

The pollen tube will bring the male gametes into the embryo sac through a ..............................

a)

integument

b)

micropyle

c)

stalk

d)

testa

28.

Triploid nuclei will develop into ....................... to supply nutrients for the growth of embryo.

a)

testa

b)

wall of fruit

c)

endosperm

d)

plumule

29.

The fertilisation in flowering plants is known as ............................... fertilisation.

a)

single

b)

double

c)

tripple

30.

Integuments will form into ........................ after double fertilisation.

a)

endosperm

b)

embryo

c)

testa

d)

fruit