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Junior Cert Science- > Plants > Flashcards

Plants Flashcards

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1
Q

Functions of roots

A

Anchor plant into ground
Take in water and minerals
Can store food eg Carrot

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2
Q

Stem functions

A

Holds flowers leaves and fruit up

Year sport water and.p nutrients through the plant

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3
Q

Leaf functions.

A

Produce food and oxygen (photosynthesis)
Allows exchange of gases
Allows water Vapour escape plant

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4
Q

Stomata

A

Openings on bottom of leaf

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5
Q

Bud functions

A

Potential plant growth

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6
Q

Flower functions.

A

Produce seeds so plants can reproduce

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7
Q

Photosynthesis formula

A

Water+carbon dioxide+sunlight+chlorophyll=oxygen+glucose

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8
Q

What’s chlorophyll

A

Green pigment with absorbs sunlight and allows photosynthesis to take place

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9
Q

What is glucose produces during photosynthesis used for?

A

Energy for resperation
Forms starch in plant
Form cellulose for new cell walls

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10
Q

Types of plant reproduction

A

Sexual and asexual

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11
Q

Explain asexual reproduction

A

One parent
No gametes
No fertilisation
Offspring identical to parent

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12
Q

Explain sexual reproduction

A

Two gametes (egg and poll on) unite
Fertilisation
Offspring has both parents characteristics
Not identical to parents

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13
Q

What is the make part of the reproductive system

A

Stamen

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14
Q

What parts make up the stamen

A

Anther and filament

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15
Q

What is the female reproductive style called

A

Carpel

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16
Q

What makes up the carpel

A

Stigma
Style
Ovary

17
Q

Why are petals large and colourful on animal pollinated plants

A

To attract animals

18
Q

Function of stigma

A

Catches pollen

19
Q

Function style

A

Carries pollen to ovary from stigma

20
Q

Function ovary

A

Produces egg. Where fertilisation occurs

21
Q

Anther function

A

Makes pollen grain. Nucleus of pollen grain=make gamete

22
Q

Filament function

A

Ensures anther is high up in flower so pollen can leave easily

23
Q

Sepal function

A

Protects flower when in bud

24
Q

Types of pollination

A 
Self pollination 
Cross pollination (to another flower)

Animal
Wind
Self

25
Q

What happens during fertilisation

A

Male gamete and female gamete nucleus’ fuse.
Zygote is formed
Turns into seed

26
Q

Dispersal

A

Transport of seed or fruit far away from parent plant

27
Q

Method of dispersal

A

Wind (dandelions)
Water (coconuts)
Animal(apples)
Self (peas pop)

28
Q

Transpiration

A

Loss of water vapour from a plant

29
Q

Geotropism

A

Plants growth response to gravity
Roots down
Shoots up

30
Q

Phototropism

A

Plants growth response to light

Grows towards light

31
Q

Tropism

A

Response in growth of plant to a stimulus

32
Q

Conditions necessary for germination

A

Moisture
Oxygen
Correct temperature

Junior Cert Science- (39 decks)

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