Pollination & Fertilisation Name: _________________________

1. From what part of the embryo plant within the seed does the root 11. What is meant by cross-pollination?
develop? _______________________________________________________
_______________________________________________________ _______________________________________________________
2. In which part of a flower does a seed form? 12. Name two methods of cross-pollination.
_______________________________________________________ _______________________________________________________
3. Some flowers have nectaries. How are these flowers pollinated?
_______________________________________________________
Explain your answer.
13. Distinguish between pollination and fertilization.
_______________________________________________________
_______________________________________________________
4. What happens to the two polar nuclei?
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
5. In the case of the ovary and ovule state what may happen to each _______________________________________________________
of them after fertilisation. 14. Give one location in a seed in which food is stored.
_______________________________________________________ _______________________________________________________
15. Name a carbohydrate that you would expect to be present in the
_______________________________________________________
food store of a seed.
6. Explain what is meant by pollination. What is the difference
between self-pollination and cross-pollination? _______________________________________________________
16. Give two ways in which pollen may be transported to another
_______________________________________________________
flower.
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________ 17. What forms in the ovary of a flower after pollination and
_______________________________________________________ fertilization?
7. Name two ways in which cross-pollination happens. _______________________________________________________
_______________________________________________________ 18. Distinguish clearly between pollination and fertilisation.
8. Suggest why cross-pollination is preferable to self-pollination. _______________________________________________________
_______________________________________________________ _______________________________________________________
9. True or False. Endosperm is a food reserve in some seeds.
_______________________________________________________
_______________________________________________________
_______________________________________________________
10. To which part of a flower is pollen carried?
_______________________________________________________
Pollination & Fertilisation Name: _________________________
19. State a location in the seed where food is stored. 28. Explain the term fertilisation.
_______________________________________________________ _______________________________________________________
20. What is meant by pollination? _______________________________________________________
_______________________________________________________ 29. What is meant by the term pollination?
_______________________________________________________ _______________________________________________________
21. What process follows pollination in the life cycle of a flowering _______________________________________________________
plant? 30. Give two methods of pollination in plants.
_______________________________________________________ _______________________________________________________
22. What is meant by the term fertilisation? 31. What is the next step after pollination in the lifecycle of the plant?
_______________________________________________________ _______________________________________________________
_______________________________________________________ 32. Suggest a substance that flowers produce that may cause hay fever
23. Give a brief account of the process of fertilisation in flowering in some people. __________________________________________
plants. 33. Name the site of production of a pollen grain.
_______________________________________________________ _______________________________________________________
_______________________________________________________ 34. Name the structure on which pollen must land to complete
_______________________________________________________ pollination.
_______________________________________________________ _______________________________________________________
24. What is meant by fertilisation? 35. Name two methods of cross pollination.
_______________________________________________________ _______________________________________________________
36. Which part of a flower usually develops into a fruit?
_______________________________________________________
25. Name the part of the flower in each case: 1. Where fertilisation _______________________________________________________
occurs 2. That becomes the fruit.
_______________________________________________________
_______________________________________________________
26. Give two ways by which pollen is transferred from one flower to
another.
_______________________________________________________
27. Name one structure through which the pollen tube grows in order
to reach the embryo sac.
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