Plants

Question 1

Flower

Answer 1

Flowers are for reproduction, they make seeds, it contains male and female sex organisms

Question 2

Leaf

Answer 2

Makes food for plant(photosynthesis), it cools the plants when water vapour passes through. Allows the exchange of carbon dioxide and oxygen. Leaf stores food (e.g. lettuce, cabbage, cress, spinach)

Question 3

Fruit

Answer 3

The job of the fruit is to protect the seeds, provides food for the seeds

Question 4

The Bud

Answer 4

Allows new leaves and flowers to grow

Question 5

Stem

Answer 5

The stem allows the transport of food, water and minerals around the plant. It also supports the plant and holds it upright, stems store food (e.g. potato)

Question 6

Roots

Answer 6

They anchor and support, take in water and nutrients and store food (e.g. carrots and turnips)

Question 7

Transport in plants

Answer 7

There are vessels in a plant, the xylem and the phloem

Question 8

Xylem

Answer 8

Water is absorbed up through the roots, and travels to the leaves and the tips of the plant through the xylem.
Minerals from the soil are dissolved in the water and they travel through with the water also.

Question 9

Phloem

Answer 9

Food from the leaves travels to other parts of the plant in the phloem

Question 10

Transpiration

Answer 10

The loss of water vapour from the stomata of the leaves

Question 11

Stomata

Answer 11

They are little holes on the underside of the leaves

Question 12

Transpiration stream

Answer 12

The flow of water from the roots, up through the plant, and out the leaves

Question 13

Stimulus

Answer 13

Anything that causes a response in an organism.

Plants respond to the stimuli of light and gravity

Question 14

Shoots tropism

Answer 14

Shoots/stems are positively phototropic, negatively geo tropic

Question 15

Why is geotropism good?

Answer 15

It makes sure plant roots travel down to find water and minerals in the soil.
Having deep roots means the plant is anchored in the soil.

Question 16

Why is phototropism good?

Answer 16

It makes sure plants get enough light for photosynthesis so that they can make food.

Question 17

Photosynthesis

Answer 17

The process where green plants make food using light energy.

Question 18

Chlorophyll

Answer 18

A green chemical needed for photosynthesis, it is found in chloroplasts in plant cells.

Question 19

Sexual reproduction

Answer 19

The flower is the sexual reproduction organ of the plant. Male cells called pollen are made here, females cells called eggs are made here.

Question 20

Sepal

Answer 20

Protects the flower before it blooms

Question 21

Petals

Answer 21

They are coloured and scented to attract insects

Question 22

Male parts

Answer 22

Stamen made up of filament and anther

Question 23

Filament

Answer 23

Holds up the anther

Question 24

Anther

Answer 24

Makes pollen

Question 25

Female parts

Answer 25

Carpel, made up of the stigma, style and ovary

Question 26

Ovary

Answer 26

Makes the egg or ovule (gamete)

Question 27

Stigma

Answer 27

Pollen lands and sticks to it

Question 28

Style

Answer 28

Makes a tube to the pollen (make gamete) to travel down to the egg (female gamete)

Question 29

Pollination

Answer 29

Is the transfer of pollen from the stamen (anther) of one plant to the carpel (stigma) of another.
There are two types: Insect pollination and wind pollination

Question 30

Fertilisation

Answer 30

The fusion of the male gamete nucleus with the female gamete nucleus to form zygote

Question 31

Cutting

Answer 31

Sometimes a leaf or piece of stem from a plant is cut off and planted it can grow into another plant e.g. geraniums

Question 32

Grafting

Answer 32

Joining the bud or stem of one plant to another well developed plant e.g. fruit trees

Question 33

Micro propagation

Answer 33

Tissue culture. A small sample of tissue is taken from a plant grown in a lab