Unit 2 - Lesson 4 - Fertilisation

Question 1

What is fertilisation?

Answer 1

The fusion of the male gametes and the female gametes, forming a zygote.

Question 2

What type of cell is a gamete?

Answer 2

Haploid cell

Question 3

What are gametes?

Answer 3

An organism’s reproductive cell or in other words sex cells.

Question 4

What are male gametes called?

Answer 4

Pollen

Question 5

What are female gametes called?

Answer 5

Egg Cells

Question 6

What is the first step in fertilization?

Answer 6

Pollination – Pollen from the anther (male part) is transferred to the stigma (female part) of a flower.

Question 7

What is the second step in fertilization?

Answer 7

Pollen Tube Formation – Once on the stigma, the pollen grain grows a tube down the style towards the ovary.

Question 8

What is the third step of fertilization?

Answer 8

The pollen tube carries the male gamete (sperm cell) through the style to reach the ovule inside the ovary.

Question 9

What is the fourth step of fertilization.

Answer 9

The male gamete joins with the female gamete (egg cell) inside the ovule. This forms a zygote, which will grow into a new plant.

Question 10

What is the fifth step of fertilization?

Answer 10

Seed Formation – After fertilization, the ovule develops into a seed, and the ovary often becomes a fruit to protect the seed.