Plant Reproduction

Question 1

Reproduction

Answer 1

Being able to produce new individuals of the same kind

Question 2

Asexual reproduction

Answer 2

Involves only one parent.
Does not involve gametes and no fertilisation takes place. New individuals are genetically identical to each other and to the parent.
Common in plants, fungi and bacteria

Question 3

Sexual reproduction

Answer 3

Two parents.
Each parent produces sex cells called gametes.
Male and female gametes come together to form a zygote.
This is known as fertilisation.
The zygote then divides many times and grows into the new individual.

Question 4

Fertilisation

Answer 4

The fusion between male and female gametes to form a zygote.

Question 5

Strawberry

Answer 5

Asexual
Strawberry plant produces a new stem at the base of the plant that grows across the surface of the ground. The stem is called a runner.
Where the runner touches the ground it produces new roots and a new shoot.

Question 6

Male organs

Answer 6

Stamens

Question 7

Female organs

Answer 7

Carpels

Question 8

Sepals

Answer 8

Protects the flower before it blooms

Question 9

Petals

Answer 9

Attracts insect

Question 10

Stamens

Answer 10

Produces pollen grains which contain the male gamete
Contains filament and anther
Filament is the stalk and supports the anther
Anther produces the pollen grains which contain the male gamete

Question 11

Carpels

Answer 11

Produce the eggs in the ovary
Consists of the stigma, style and ovary.
Stigma is where the pollen lands
Style connects the stigma to the ovary
Ovary contains ovules which produce the female gamete, the egg

Question 12

Stages of sexual reproduction

Answer 12

Pollination
Fertilisation 
Seed and fruit formation
Seed and fruit dispersal
Germination

Question 13

Pollination

Answer 13

The transfer of pollen from the stamen to the carpel.
The pollen grain must get to the egg in some way
This happens by wind or insects

Question 14

Fertilisation

Answer 14

The pollen lands on the carpel and a tube grows out of the pollen grain.
It grows down into the ovule in the ovary. The ovule contains the egg cell
The male gamete passes from the pollen tube into the ovule and fuses with the egg
The zygote is formed which develops into the new plant.

Question 15

Seed and fruit formation

Answer 15

The fertilised ovule becomes a seed.
The stamens, sepals and flowers fall off the plant.
The ovule swells and becomes the fruit which protects the seeds.

Question 16

Seeds

Answer 16

Protective outer shell called the testa
Baby shoot called the plumule
Baby root called the radicle
Food supply

Question 17

Seed and fruit dispersal

Answer 17

Seeds and fruit should be dispersed away from the parent plant so they don’t have to compete for light, water, minerals and space

Question 18

Wind dispersal

Answer 18

Dandelion

Seeds/fruit are light, may have wings or hairs

Question 19

Animal dispersal

Answer 19

Raspberry

Fleshy and tasty, may have hooks

Question 20

Water dispersal

Answer 20

Water lily

Light and buoyant to float

Question 21

Self dispersal

Answer 21

Peas

Have pods which explode to release the seeds

Question 22

Germination

Answer 22

The growth of a seed into a new plant

Seeds need water, oxygen and correct temperatures to germinate