Plants

Question 1

Flower

Answer 1

Flower is for reproduction
• It makes seeds
• It contains male and female sex organs

Question 2

Leaf

Answer 2

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

Question 3

Fruit

Answer 3

• Protectsseeds
• Provides food for 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

• Anchor and support
• Take in water and nutrients
• 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.
• 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 so, travel in the xylem also.
• Food from the leaves travels to other parts of the plant in the phloem.

Question 8

Transpiration

Answer 8

• Transpiration is the loss of water vapour from the stomata of the leaves.
• The stomata are little holes on the underside of the leaves.
The flow of water from the roots, up through the plant, and out the leaves is called the transpiration stream.

Question 9

Flower

Answer 9

• The flower is the sexual reproduction organ of the plant
• Male cells called pollen are made here
• Female cells called egg cells are made here

Question 10

Sepal

Answer 10

protects the flower before it blooms

Question 11

Petals

Answer 11

coloured and scented to attract insects

Question 12

Male parts

Answer 12

Stamen made up of filament and anther

Question 13

Filament

Answer 13

Holds up anther

Question 14

Anther

Answer 14

Makes pollens

Question 15

Female parts

Answer 15

Carpel, made up of the stigma, style and ovary

Question 16

Ovary

Answer 16

makes the egg or ovule (gamete)

Question 17

Stigma

Answer 17

pollen lands and sticks to it

Question 18

Style

Answer 18

makes a tube for the pollen (male gamete) to travel down to the egg (female gamete)

Question 19

Pollination.

Answer 19

Pollination is the transfer of the pollen from the stamen (anther) of one plant to the carpel (stigma) of another

Question 20

Fertilisation

Answer 20

Fertilisation is the fusion of the male gamete nucleus with the female gamete nucleus to form a zygote

Question 21

Photosynthesis

Answer 21

is the process where green plants make food using light energy

Question 22

Stomata

Answer 22

Little holes on the under side of leaves for gas exchange

Question 23

Carbon dioxide

Answer 23

Comes from the atmosphere

Question 24

Water

Answer 24

Comes in through the roots from the soil