Describe the process of fertilisation that takes place in flowering plants

Question 1

Describe the process of fertilisation that takes place in flowering plants /8

Answer 1

Generative cell nucleus divides by mitosis to form two generative nuclei (sperm)

Question 2

Describe the process of fertilisation that takes place in flowering plants 2/8

Answer 2

Tube nucelus grows pollen tube down style by digesting it with enzymes

Question 3

Describe the process of fertilisation that takes place in flowering plants 3/8

Answer 3

The generative nuclei follow behind

Question 4

Describe the process of fertilisation that takes place in flowering plants 4/8

Answer 4

The tube grows through the ovary and then through the micropyle of an ovule

Question 5

Describe the process of fertilisation that takes place in flowering plants 5/8

Answer 5

The 2 sperm pass into ovule for fertilsation

Question 6

Describe the process of fertilisation that takes place in flowering plants 6/8

Answer 6

One nuelus fuses as expected with the ovum to form a diploid zygote

Question 7

Describe the process of fertilisation that takes place in flowering plants 7/8

Answer 7

The other fuses with the 2 polar nuclei to form a triploid endosperm nucleus. This is used to supply the embryonic plant with food at germination

Question 8

Describe the process of fertilisation that takes place in flowering plants 8/8

Answer 8

This is called double fertilisation