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INTEGRATED SCIENCE PRACTICE QUESTIONS

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REPRODUCTION & GROWTH IN PLANTS

1.

For grafting to be successful, the scion and the stock must be of the same

A.

size.

B.

length.

C.

diameter.

D.

texture.

2.

Examples of plants with rhizome are

A.

ginger and fern.

B.

onion and ginger.

C.

yam and Irish potato.

D.

onion and fern.

3.

Mineral salts from the soil pass into the root hair cells by

A.

tugor pressure

B.

active transport

C.

osmosis

D.

capillarity

4.

Turgidity in plants is the result of

A.

water entering the cells.

B.

water leaving the cells.

C.

the withdrawal of cytoplasm from the cell wall.

D.

diffusion of materials into the cells.

5.

One function of water in the germination of seeds is that it

A.

causes the seed to produce auxins.

B.

kills the germs in the seed.

C.

activates the enzymes to breakdown stored food.

D.

terminates the period of dormancy.

6.

The essential parts of a flower are the

A.

stamen and sepal.

B.

pistil and stamen.

C.

stamen and ovule.

D.

pistil and corolla.

7.

Which of the following structures in plants prevents water loss?

A.

Phloem

B.

Mesophyll

C.

Xylem

D.

Cuticle

8.

Good quality seeds should be

A.

free from dirt, weed seeds and pest.

B.

brightly coloured.

C.

hard seed coat with small micropyle.

D.

dressed with recommended chemicals.

9.

Fertilization in flowering plants is known as double because

A.

the female nucleus is double penetrated by one male gamete while the other regenerate

B.

two cotyledons are formed.

C.

two embryo nucleus are formed.

D.

one male gamete fertilizes the egg while the second fuses with the polar nuclei.

10.

A flower with both stamens and carpels is said to be

A.

a hermaphrodite.

B.

irregular.

C.

monoecious.

D.

dioecious.

11.

The material used for propagating cassava is the

A.

root tuber.

B.

stem cutting.

C.

sucker.

D.

seed.

12.

An example of a corm is

A.

yam.

B.

ginger.

C.

cocoyam.

D.

onion.

13.

For grafting to be successful, the scion and the stock must be of the same

A.

size.

B.

length.

C.

diameter.

D.

texture.

14.

Examples of plants with rhizome are

A.

ginger and fern.

B.

onion and ginger.

C.

yam and Irish potato.

D.

onion and fern.

15.

Mineral salts from the soil pass into the root hair cells by

A.

tugor pressure

B.

active transport

C.

osmosis

D.

capillarity

16.

One function of water in the germination of seeds is that it

A.

causes the seed to produce auxins.

B.

kills the germs in the seed.

C.

activates the enzymes to breakdown stored food.

D.

terminates the period of dormancy.

17.

Which of the following structures in plants prevents water loss?

A.

Phloem

B.

Mesophyll

C.

Xylem

D.

Cuticle

18.

The fibrous mesocarp of coconut aids its dispersal by

A.

explosion.

B.

insects.

C.

water.

D.

wildlife.

19.

Fresh tomato seeds only germinate after they dry up. This may be due to

A.

unstable pH.

B.

absence of hormones.

C.

hard testa.

D.

the presence of inhibitors.

20.

An example of a unisexual flower is

A.

Hibiscus.

B.

Pride of Barbados.

C.

flamboyant.

D.

watermelon.

21.

Symbiotic association in the root nodules occurs in

A.

cocoyam.

B.

millet.

C.

rice.

D.

soya bean.

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