Plant reproduction

Question 1

What are the different types of pollination?

Answer 1

Self, insect and wind

Question 2

What is wind pollination?

Answer 2

Pollen is blown away by the wind and transferred to another plant. Pollen is small and light so they are easily carried

Question 3

what is insect pollination

Answer 3

-pollen is transferred from one flower to another by insects. Plants may have nectar or large colourful petals to attract the insect

Question 4

what is self pollination

Answer 4

the transfer of pollen from the anther of a flower to the stigma of the same flower or sometimes to that of a genetically identical flower

Question 5

what is pollination

Answer 5

Pollination is the transfer of pollen from the anther where its made to the stigma there are 3 ways of pollination self insect and wind

Question 6

what is fertilisation

Answer 6

Fertilisation occurs when 2 sex cells fuse together. In plants, fertilisation occurs after pollination. This involves pollen grains from the male anther of a flower being transferred to the female stigma.

Question 7

what is wind seed dispersal

Answer 7

the seed are light and need some means to catch the wind such as hair or “wings”

Question 8

what is animal seed dispersal

Answer 8

seeds need some means to catch hold of the animal such as hooks or being stick or nice to eat

Question 9

what is explosive seed dispersal

Answer 9

seeds are propelled from the parent plant

Question 10

what is germination

Answer 10

Germination the process by which seeds begin to grow into plants.

Question 11

Sepals

Answer 11

Protect the unopened flower

Question 12

Petals

Answer 12

May be brightly coloured to attract insects

Question 13

Stamens

Answer 13

The male parts of the flower (each consists of an anther held up on a filament)

Question 14

Anthers

Answer 14

Produce male sex cells (pollen grains)

Question 15

Stigma

Answer 15

The top of the female part of the flower which collects pollen grains

Question 16

Ovary

Answer 16

Produces the female sex cells (contained in the ovules)

Question 17

Nectary

Answer 17

Produce a sugary solution called nectar, which attracts insects

Question 18

Explain the steps of fertilisation

Answer 18

A pollen grain is transferred from one flower to another. A pollen tube grows from the stigma to the ovary.

The nucleus of the pollen grain passes through the pollen tube and joins with the egg cell inside an ovule in the ovary.

The fertilised egg cell develops into an embryo.