B5: Reproduction in Flowering Plants Flashcards

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1
Q

Identify the missing label:

A
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2
Q

What is the function of the anther?

A

It produces pollen

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3
Q

Why are flower petals usually bright colours?

A

To attract insects/pollinators to them.

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4
Q

The female reproductive parts of a flower are called the…

A

Carpel

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5
Q

Name the two methods by which plants can be pollinated.

A

By wind

By insects/animals

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6
Q

Identify the missing label:

A
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7
Q

When pollen is transferred to the stigma it is called…

A

……pollination

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8
Q

What is the female gamete in a flowering plant?

A

Ovules

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9
Q

Describe the flowers of wind-pollinated plants.

A
  1. Small dull petals.
  2. No nectar.
  3. Large amounts of pollen made.
  4. Pollen is very light.
  5. Anthers dangle out of plant to make easy for pollen to escape.
  6. Stigma hangs out of plant so can catch pollen easier.
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10
Q

Describe the flowers of a plant that is fertilised by insects.

A
  1. Brightly coloured, sweet smelling petals to attract insects.
  2. Some flowers make nectar which bees use to make honey.
  3. Small amounts of pollen are produced.
  4. Pollen is spiky so sticks to insects.
  5. Anther and stigmas are held firmly in flowers so insects can rub against them.
  6. Stigma has a sticky coating, so pollen sticks to it.
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11
Q

Give examples of how seeds are adapted to different methods of dispersal

A
  • Parachute e.g. dandelion
  • Wings e.g. sycamore
  • Floating in water e.g. mangrove
  • Animals e.g. thistle
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12
Q

What is the function of the stimga?

A

It is the sticky part of the carpel that cathes grains of pollen.

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13
Q

Identify the missing label:

A
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14
Q

The male reproductive parts of a flower are called the…

A

stamen

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15
Q

What is the function of the ovary?

A

It contains the ovules (female gametes)

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16
Q

When the nucleus of a pollen grain and ovule fuse together we call it…

A

Fertilisation

17
Q

Describe how fertilisation, in flowering plants, leads to the formation of a fruit containing seeds.

A
  1. Pollen grain lands on stigma.2. Tube grows from pollen grain down through style.3. The pollen nucleus moves down the tube.4. The pollen nucleus joins with the ovule nucleus (fertilisation).5. A fruit containing seeds will then form.
18
Q

Which part of a flowering plant turns into a fruit after fertilisation has happened?

A

The ovary.

19
Q

Which part of a flowering plant turns into the seeds after fertilisation has happened?

A

Ovules

20
Q

Which 3 parts do all seeds have?

A
  1. A seed coat.
  2. An embryo
  3. A food store (starch)
21
Q

What is the function of the seed coat of a seed?

A

It protects the seed.

22
Q

What is the function of the food store of a seed?

A

It provides food to the plant embryo before it starts to do photosynthesis.

23
Q

What do we call it when a seed first starts to grow?

A

Germination.

24
Q

What does a seed need to germinate?

A
  1. Water
  2. Warmth
  3. Oxygen

(NOT LIGHT!!)

25
Q

Why does a seed need water to germinate?

A

It makes the seed swell up, breaks the seed coat and allows the embryo to start growing.