Given below is a diagrammatic sketch of the sectional view of a germinating pollen
grain. Study the same and answer the questions that follow: 151
i) Name the parts labeled 1, 2, 4, and 5.
ii) Where does the germination of the pollen grain takes place and how?
iii) What is the function of the part labeled 4 in relation to the part
labeled 3?
iv) What happens to the part labeled 5 during the process?
v) Draw a neat-labeled diagram of the ovule showing the embryo sac in
it.
S
3
(b) What are antibiotics? List two criteria of a good antibiotic. [3]
(c) Give reason as to why breathing through the nose is said to be healthier than through
the mouth. [2]
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there is diagram only how can we answer this question
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