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Biology > Reproduction In Plants > Flashcards

Reproduction In Plants Flashcards

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AP® Biology flashcards Biology 101 flashcards
0
Q

Asexual reproduction in plants

A

By taking cutting plants can reproduce asexually

Runners are asexually reproduced

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1
Q

Reproduction in plants

A

Asexual or sexually
After pollination a pollen tube grows from ovary to ovules (carries male nucleus) fertilisation is the fusing of the gametes

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2
Q

Sex organs of plants

A

Flowers

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3
Q

Male gamete

A

Pollen

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4
Q

Pollen formed where

A

In the anthers of the stamens

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5
Q

Female gametes

A

Ovules

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6
Q

Where are ovules formed

A

In the ovaries

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7
Q

How are gametes formed

A

By meiosis

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8
Q

Plants, insect -stamens

A

Inside petals

Insects must come in contact with them

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9
Q

Plant, insect- stigma

A

Sticky, so pollen grains attach

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10
Q

Plant, insect- petals

A

Large

Bright coloured to attract insects

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11
Q

Plants, insect- nectaries

A

Present to attract insects

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12
Q

Plant, insect- pollen grains

A

Large and sticky to stick to stick to insects

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13
Q

Plant, wind- stamens

A

Outside petals

So wind can blow pollen away

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14
Q

Plant, wind- stigma

A

Outside

To catch pollen blowing in the wind

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15
Q

Plant, wind- petals

A

Small and green

16
Q

Plant, wind- nectaries

A

Absent

17
Q

Plant, wind- pollen grains

A

Small

Smooth and light to carry in the wind

18
Q

Plant fertilisation

A

The nucleus of the pollen must fuse with the nucleus of the ovule
(Pollen tube grows front he pollen grain into the ovary in the ovule)
Male nucleus travels down this
Zygote formed, turns into a seed

19
Q

A seed contains

A 
Embryo plant 
Root (radicle)
Shoot (plumule)
Seed leaves (cotyledons)
Seed coat (testa)
20
Q

Germination requires warmth

A

For maximum enzyme efficiency

21
Q

Germination requires water

A

To soften the testa and for chemical reactions

22
Q

Germinating requires oxygen

A

For respiration, to provide energy

Biology (19 decks)

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