PRACTICE 3
Cycles
Reproduction in Plants
Term 1 / Week 3
Section A
For each question, four options are given. One of them is the correct
answer. Make your choice (1, 2, 3 or 4) and write the number in the
brackets provided.
1. The diagram below shows a cross-section of a flower. Which part(s) of the flower
is/are involved in pollination?
(1) X only (2) Z only
(3) X and Y only (4) X, Y and Z
2. Four flowers A, B, C and D from the same plant were used for an experiment. One
part from each flower was removed. Pollen grains from the same plant were then
dusted on the four flowers.
Which of the following flowers would most likely develop into a fruit?
3. The diagram below shows the processes A, B, C and D involved in the life cycle of
a flowering plant.
Which of the following correctly identifies the processes of germination, fertilisation
and seed dispersal?
4. Ali cut open a papaya fruit and observed that it contained many seeds.
Based on the observation, which of the following statements is true?
(1) Papaya flowers grow in bunches.
(2) The papaya flower has many ovaries.
(3) The papaya flower produces many pollen grains.
(4) There are many ovules in the ovary of the papaya flower.
5. Which part of a flower will eventually develop into a fruit after fertilisation?
(1) A
(2) B
(3) C
(4) D
6. The diagram below shows the cross-sections of two different flowers.
Which of the following statements are true?
A Both flowers can develop into fruit.
B Only flower A can develop into a fruit.
C Pollination can take place in both flowers.
D Pollination can only take place in flower A.
(1) A and Conly
(2) A and D only
(3) B and C only
(4) Band D only
Section B
Write your answers in the blanks provided.
7. The diagram below shows the cross-section of flower P.
(a) Name the ports of the flower in the table below.
(b) On the diagram above, label and indicate
(i) with the letter 'A' the part which develops into a fruit.
(i i) with the letter 'B' the part where pollen grains are produced.
(c) Bella removed the male parts of flower P. She predicted that flower P could still
……be fertilised. Explain why Bella made such prediction.
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(d) Explain what happens during fertilisation .
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8. The diagram below shows two flowers. Some substances are transferred from one
flower to the other as shown by the arrow below.
a) Describe the type of pollination that is shown above.
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(b) State two observable changes in a flower after pollination.
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9. The diagram below shows the populations of two different types of plants in an
area in the year 2012.
(a) State the method of dispersal for plants X and Y.
(i) X :_______________________________________________________
(ii) Y :_______________________________________________________
(b) How do you know that plant X is dispersed by the method in (a)(i)?
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(c) Name one characteristic of the fruit plant X that enables it to be dispersed using
the method mentioned in (a)(i).
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10. Julie cut open two fruits as shown below. Both fruits are sweet, fleshy and
brightly coloured.
(a) Why is it important for seeds to be dispersed for away from the parent plant?
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(b) The seed of fruit A is large and hard. The seeds of fruit B are indigestible.
Describe the difference in the process of seed dispersal for the two fruits.
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