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Science > Plants > Flashcards

Plants Flashcards

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1
Q

Flower

A

Purpose is for reproduction , it makes seeds and contains the female and males sex organ

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2
Q

Leaf

A

Makes food (photosynthesis) , cools the plant when water vapor passes through it , allows the exchange of carbon dioxide to oxygen and the leaf stores food (Eg - lettuce)

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3
Q

Fruit

A

Protects the seeds provides food for the seeds (Eg - apples the seeds are inside the apple)

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4
Q

Bud

A

Allows new leaves and flowers to grow

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5
Q

Stem

A

Allows the transport of food , water and minerals around the plants . It also supports the plant and holds of upright and stems sometimes store food

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6
Q

Roots

A

Anchor and support the plant , they can take in water , nutrients and sometimes store food

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7
Q

Transport in plants

A

These are vessels in a plant , the xylem and phloem

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8
Q

Xylem

A

Water is absorbed the light the roots and travels to the leaves , minerals from the soil are dissolved in the water and travel to the leaves

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9
Q

Phloem

A

Food from the leaves travel through this to other parts of the plant

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10
Q

Transpiration

A

Is the loss of water vapor from the stomata on the underside of the leaves

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11
Q

Stomata

A

Holes on the underside of the leaves

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12
Q

Transportation stream

A

The flow of water from the roots up to through the plants and out the leaves

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13
Q

Stimulus

A

Anything that cause a reaction in a organism . Plants respond to the stimuli of light and gravity

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14
Q

Stems tropism

A

Stems are positively phototropic and negatively geotropic

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15
Q

Roots tropism

A

Roots are negatively phototropic and positively geotropic

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16
Q

Geotropic

A

Attracted to the gravity

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17
Q

Phototropic

A

Attracted to sunlight

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18
Q

Why is geotropism good

A

Makes sure the roots go down and get all the minerals and water in the soil . The plant is anchored to the soil and won’t fall over

19
Q

Why is phototropism good

A

It makes sure the plants gets light so they can make food

20
Q

Photosynthesis

A

The process where plants make food using the sun light

21
Q

Chlorophyll

A

Green chemical needed in photosynthesis process and can be found in chloroplasts in the plant cell

22
Q

How are leaves designed for photosynthesis

A

They are flat and thin to allow sunlight to get through them . The have little holes called stomata to let carbon dioxide in and oxygen out

23
Q

Male cells

A

Pollen

24
Q

Female cells

A

Egg

25
Q

Sepal

A

Protects the flower before it blooms

26
Q

Petals

A

Colored and scented to attract insects

27
Q

Male parts

A

Stamen made up of filaments and anthers

28
Q

Filament

A

Holds up the anthers

29
Q

Anther

A

Makes the pollen

30
Q

Female parts

A

Carpel , made up of the stigma , style and ovary

31
Q

Ovary

A

Makes the egg or ovule

32
Q

Stigma

A

Pollen lands and sticks to it

33
Q

Style

A

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

34
Q

Pollination

A

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

35
Q

Fertilization

A

Is the fusion of the male gamete nucleus and the female gamete nucleus to form a zygote

36
Q

Zygote

A

When the male and female nucleus fuse they for a zygote . The zygote divides and develops into a plant embryo

37
Q

Plumule

A

Becomes the plant shoot

38
Q

Radicle

A

Becomes the plant root

39
Q

Seed

A

After fertilization the fertilized egg becomes the plant seed

40
Q

Fruit

A

The ovary swells to become the fruit

41
Q

Functions of the fruit

A
  • Protects the seed
  • Allows the seed to be carried away
  • Provides food for the seed
42
Q

2 types of fruit

A
  • Fleshy ( strawberry , melon )

- Dry ( dandelion , sycamore ( seeds ) )

43
Q

Seed dispersal

A

The way plants spread their seeds around . They need to be carried away so they won’t compete with the parent plant for water , light and minerals

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