Reproduction in plants Flashcards

1
Q

Define reproduction

A

The process used by organisms to make a new member of the same species

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2
Q

What is the function of the sepals ?

A

Protects the flower before it opens up

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3
Q

What is the function of the petals ?

A

Colourful part of flower , attracts insects

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4
Q

What is the function of the statements ?

A

The male parts of the flower . They produce pollen and help to disperse them

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5
Q

What is the function of the stigma ?

A

Where pollen attracts during pollination

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6
Q

What is the function of the style ?

A

Connects the stigma to the ovary

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7
Q

What is the function of the ovary ?

A

Contains the ova ( female gametes ) to the flower

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8
Q

What is the function of the anther ?

A

Where pollen is made

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9
Q

What are gametes ?

A

Sex cells

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10
Q

What is the name of plant gametes ?

A

They are called haploids ( Only contain half ) the normal amount of DNA ) male gametes = pollen , female = ova

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11
Q

Define pollination

A

The transfer of pollen from the anther to the stigma either of the same flower / plant or a different plant / flower

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12
Q

What is it called when a plant pollinates it’s self ?

A

self pollination

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13
Q

What is it called when a plant / flower releases its pollen to another plant ?

A

cross pollination

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14
Q

Name two ways plants pollinate

A

Wind pollination

Insect pollination

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15
Q

Wind pollination ?

A

When transfer of pollen is carried by wind

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16
Q

Insect pollination ?

A

When insects transfer pollen during pollination

17
Q

Example of wind pollination

A

Grass

18
Q

Example of Insect pollination

A

Sun flowers , roses , orange

19
Q

What is nectar ?

A

A sweet aromatic liquid

20
Q

What is the function of nectar ?

A

Attracts and rewards insects for there role in pollination

21
Q

What is a double fertilisation ?

A

This is the process by which the ova fuse with the sperm from pollen to form embryos as well as causing the development of the fruit

22
Q

What are seeds ?

A

Seeds are plant zygotes ( results of fertilisation of ova )

23
Q

How are seeds formed ?

A

They are formed when sperm cells from pollen fuse with ova

24
Q

What is the embryo ?

A

The cluster of cells which result from the division of the zygote

25
Q

What is the food store ?

A

The glucose within the seed which provides energy for the seeding before it begins to photosynthesis

26
Q

How does dispersal aid the survival of new plants ?

A

The dispersal of seeds means that the resulting plants have access to more light , minerals etc

27
Q

How are seeds adapted for wind dispersal ?

A

Seeds which are dispersed by wind are very light and have attachments which help them catch the wind

28
Q

How are seeds adapted for animal dispersal ?

A

Seeds can be dispersed by animals will have hooked attachments or eaten or dispersed in poo

29
Q

How have seeds adapted for water dispersal ?

A

They are able to float

30
Q

Example of a seed adapted to water ?

A

Coconut

31
Q

Define germination

A

The process by which seeds split to grow and form seeding