Biology~plants

Question 1

Flower

Answer 1

Flower is for reproduction it makes seeds it contains make and female sex organs

Question 2

Leaf

Answer 2

Makes food for the plant (photosynthesis) cools the plant when water vapor passes through it allowed the exchange of carbon dioxide and oxygen lead stored food(e.g lettuce,cabbage,cress and spinach

Question 3

Fruit

Answer 3

Protects seeds and provides food for the seeds

Question 4

The bud

Answer 4

Allows new leaves 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(eg potato

Question 6

Roots

Answer 6

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 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 so travel in the xylem also

Question 9

Phloem

Answer 9

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

Question 10

Transpiration

Answer 10

Is the loss of water vapor from the stomata of the leaves(like plant equivalent of sweating)

Question 11

Stomata

Answer 11

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 is called the transpiration stream

Question 13

Stimulus

Answer 13

A stimulus is anything that causes a response in an organism

Question 14

Plants respond to the stimuli

Answer 14

Plants respond to the stimuli of light and gravity

Question 15

Shoots tropism

Answer 15

Shoots/stems are positively phototropic,negatively geotropic

Question 16

Roots tropism

Answer 16

Roots are negitively photo trophic,positively geotrpic

Question 17

Why is geotropism good

Answer 17

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

Question 18

Why is phototropism good

Answer 18

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

Question 19

Photosynthesis

Answer 19

Is the process where green plants make food using light energy

Question 20

Chlorophyll

Answer 20

Is a green chemical needed for photosynthesis found in chloroplasts in plant cells

Question 21

Stomata

Answer 21

Leaves have tiny holes in them to allow a Egan out and carbon dioxide in they are called stomata

Question 22

Male cells

Answer 22

Are called pollen

Question 23

Female cells

Answer 23

Are called eggs

Question 24

Sepal

Answer 24

Protects the flower before it blooms

Question 25

Petals

Answer 25

Colored and scented to attract insects

Question 26

Male parts

Answer 26

Stamen made up of filament and anther

Question 27

Filament

Answer 27

Holds up anther

Question 28

Anther

Answer 28

Makes pollen

Question 29

Female parts

Answer 29

Carpel made up of the stigma and ovary

Question 30

Ovary

Answer 30

Makes the egg or ovule

Question 31

Stigma

Answer 31

Pollen lands on it and sticks to it

Question 32

Style

Answer 32

Makes a tube for the pollen to reveal down to the egg

Question 33

Pollination

Answer 33

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

Question 34

Fertilization

Answer 34

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

Question 35

Seed an fruit formation

Answer 35

After fertilisation the fertilised egg

becomes the seed.The ovary swells to become the fruit

Question 36

Seed dispersal

Answer 36

Seed dispersal is the way plants spread their seeds around.Seeds need to be carried away from the parent plant so they won’t compete for space, light, water and minerals

Question 37

Germination

Answer 37

Germination is the growth of seeds into a new plant

• Seeds need water, oxygen and heat to germinate

Question 38

Zygote

Answer 38

When the male and female nucleus fuse they form the zygote

Question 39

Plumule

Answer 39

The plumule will become the plant shoot

Question 40

Radicle

Answer 40

The radicle will become the plant root

Question 41

Seed

Answer 41

After fertilization the fertilized egg becomes the seed

Question 42

Ovary

Answer 42

The ovary then becomes the actual fruit

Question 43

Functions of the Fruit

Answer 43

• Fruit protects the seed or seeds
• Fruit allows the seed to be carried away from the plants
• some fruits provide food for the seed to develope

Question 44

Fleshy fruit

Answer 44

examples would be Strawberries or melon

Question 45

Dry fruit

Answer 45

Examples would be dandelion seeds or sycamore seeds

Question 46

Animal dispersal

Answer 46

When fleshy fruits are eaten by animals or birds.the seeds pass unharmed through the animal and come out in faeces somewhere else

Question 47

Wind dispersal

Answer 47

Examples would be dandelion (parachute)and sycamore seeds(helicopters)

Question 48

Water dispersal

Answer 48

An example would be Water Lily’s

Question 49

Cutting

Answer 49

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