fertilisation and germination in plants

Question 1

what is fertilisation

Answer 1

fusion of gametes

Question 2

after successful pollination what forms from the pollen grains

Answer 2

a pollen tube

Question 3

after succesful pollination, the pollen tube

Answer 3

• grows down the style towards the ovary
• the pollen grain travels down the pollen tube

Question 4

fertilisation happens when

Answer 4

the pollen nucleus and the ovum nucleus fuse together to form a zygote

Question 5

conditions needed for germination (3)

Answer 5

• water
  to activate the enzymes that break down the food reserves in the seeds
• oxygen
  for respiration, which transfers energy from food for growth
• suitable temp
  for the enzymes in the seed to work

Question 6

germination is

Answer 6

the begining of seed growth