Plant Reproduction – TEST
1 The diagram shows a flower. In which structure do seeds develop?
2 What must always be available to allow seeds to germinate?
A carbon dioxide
B light
C mineral salts
D water
3 What are advantages of sexual and asexual reproduction?
4 The diagrams show pollen grains from three different species of plant as they appear under the
microscope. The diagrams are all to the same scale.
Which pollen grains are involved in insect-pollination?
A 1 and 2
B 1 only
C 2 and 3
D 3 only
5 Which environmental condition is not essential for the germination of all seeds?
A availability of light
B availability of oxygen
C availability of water
D suitable temperature
6 In addition to a suitable temperature, what else is always necessary for seed germination?
A carbon dioxide and sunlight
B mineral ions
C sunlight and water
D water and oxygen
7 The diagram shows half a flower. On which structure would pollen be deposited in pollination?
8 The diagram shows a flower in vertical section.
Which numbered parts of the flower continue to develop after fertilisation?
A 1 and 5
B 2 and 4
C 3 and 5
D 4 and 5
9 Which environmental factor is not always a requirement for seed germination?
A light
B oxygen
C suitable temperature
D water
10 The diagram shows an experiment on germination. Groups of test-tubes were set up as shown. The
groups were placed in different conditions.
Which table below shows the results?
11 Which row shows how one type of gamete is transported so that fertilisation can occur in a flowering
plant?
12 In which conditions will seeds germinate?
13 A mango tree can reproduce by seed and by asexual reproduction. Trees produced by each of these
methods produce mango fruits.
When comparing these fruits genetically, what is the correct result?
14 The diagram shows a section through a flower.
After the flower is fertilised, which parts will develop into the fruit and the seed?
15 The graph is a record of the growth of a plant.
Which labels should be used for the x-axis and the y-axis?
16 Many flowering plants can reproduce sexually and asexually.
(a) (i) Define the term asexual reproduction.
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(ii) State one advantage and one disadvantage of asexual reproduction for flowering plants.
advantage .........................................................................................................................................................
disadvantage ............................................................................................................................................... [2]
(b) (i) Define the term growth.
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(ii) Fig. 5.1 shows a potato plant, Solanum tuberosum, grown from a tuber. The tubers that potato plants
are grown from are commonly referred to as seed potatoes.
Potatoes can reproduce asexually by means of tubers. The parent plant produces underground stems,
which eventually form tubers. With reference to Fig. 5.1 below, describe how tubers are formed from the
underground stems in potatoes.
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(c) Pollination is the transfer of pollen from the anther to the stigma. Pollen can be transferred to the stigma
by being carried by the wind or by animals.
(i) State two structural adaptations of a flower for wind-pollination.
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(ii) State how self-pollination differs from cross-pollination.
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(iii) Suggest one reason why self-pollination might be advantageous to a population of plants.
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[TOTAL
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