Question

Q35. (i) Distinguish between pollination and fertilization.

(ii) Draw a neat and labelled diagram of a pistil showing pollen tube growth and
its entry into the ovule.

(iii) Mention the site and product of fertilization in a flower.​

Answer 1

Explanation:

(i) Pollination refers to the transfer of pollen from anther to stigma. Fertilization can only occur AFTER pollination and refers to the joining of sperm and egg inside the ovary.

(ii) picture attached .

(iii) The site of fertilization in an flower is ovary. Inside the ovary, the ovule is fertilized by the pollen. After the process of fertilization, the ovary in the flower thickens and enlarges to form the fruit. Also, the ovule present in the flower becomes the seed containing the embryo.

Answer 2

Answer:

The main difference between pollination and fertilization is that pollination is the deposition of pollen grains from the anther to a stigma of a flower whereas fertilization is the fusion of the haploid gametes, forming a diploid zygote.

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