Plant Fertilisation

Question 1

Process of fertilisation

Answer 1

1. Pollen lands on the stigma
2. The pollen goes down the style and into the ovary
3. The nucleus of a male sex cell moves down the tube to join with a female sex cell inside an ovule
4. Fertilisation is when the two nuclei join

Question 2

Seed formation

Answer 2

1. Seeds are formed from ovules. Each seed contains a dormant (inactive) embryo plant.
2. The embryo plant has a food store which it uses when conditions are right- when it starts to grow (germinate)
3. The ovary develops into a fruit around the seed. Fruits can tempt animals to eat them and scatter their seeds in feaces.

Question 3

Seed dispersal types

Answer 3

Wind dispersal