Question

State two differences between pollination and fertilization.

Hint:

Pollination $\rightarrow$ transfer of pollen grains (external). Fertilization $\rightarrow$ fusion of gametes (internal). Pollination must occur before fertilization can take place.

Answer 1

Two Differences Between Pollination and Fertilization:

Pollination and fertilization are two important processes in the reproduction of flowering plants. Although they are related, they differ in meaning, process, and outcome.

1. Meaning and Process:

Pollination:
Pollination is the transfer of pollen grains from the anther (male part of the flower) to the stigma (female part of the flower). It is the first step in the reproductive process and does not involve fusion of gametes.

Fertilization:
Fertilization is the fusion of the male gamete (present in the pollen grain) with the female gamete (egg cell) inside the ovule. It results in the formation of a zygote.

2. Place and Outcome:

Pollination:
Pollination occurs on the stigma of the flower. Its outcome is the germination of the pollen grain and formation of the pollen tube.

Fertilization:
Fertilization occurs inside the ovule in the ovary. Its outcome is the formation of a zygote, which later develops into a seed.

Conclusion:
Pollination is the transfer of pollen grains to the stigma, while fertilization is the fusion of male and female gametes to form a zygote. Pollination is the first step in plant reproduction, whereas fertilization leads to seed formation.