Reproduction in Plants Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Position of stamens in insect-pollinated flowers

A

Enclosed within flower so that insects must make contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Position of stamen in wind-pollinated flowers

A

Exposed so wind can easily blow pollen away

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Position of stigma in insect-pollinated flowers

A

Enclosed within the flower so that insects must make contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Position of stigma in wind-pollinated flowers

A

Exposed to catch pollen blowing in the wind

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Type of stigma in insect-pollinated flowers

A

Sticky so pollen grains attach from insects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Type of stigma in wind-pollinated flowers

A

Feathery to catch pollen grains blowing in the wind

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Size of petals in insect-pollinated flowers

A

Large to attract insects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Size of petals in wind-pollinated flowers

A

Small

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Colour of petals in insect-pollinated flowers

A

Brightly coloured to attract insects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Colour of petals in wind-pollinated flowers

A

Not brightly coloured, usually green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Nectarines in insect-pollinated flowers

A

Present - They produce nectar, a sweet lipid containing sugars as a “reward” for insects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Nectarines in wind-pollinated flowers

A

Absent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Pollen grains in insect-pollinated flowers

A

Larger, sticky grains or grains with hooks to stick to insects’ bodies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Pollen grains in wind-pollinated flowers

A

Smaller, smooth, inflated grains to carry in the wind

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The growth of the pollen tube and fertilisation results in seed and fruit formation with what changes?

A
  • The zygote develops into an embryonic plant with a small root (radical) and shoot (plumule)
  • Other contents of the ovule develop into a food store for the young plant when it germinates
  • The ovule wall becomes the seed coat or testa
  • The ovary wall become the fruit coat (this can take many forms depending upon the fruit)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Describe an experiment to investigate the conditions required for germination

A
  1. Place a small seed e.g. peas or mustard on wet cotton wool in a test tube at room temperature; 2. Vary a condition for each additional test tube; 3. Leave for a few days then observe results
17
Q

Where are the food reserves in a seed?

A

The cotyledon

18
Q

What does natural asexual plant reproduction involve?

A

Part of the plant growing then breaking away from the parent plant before developing into a new plant e.g. runners, bulbs and tubers

19
Q

What does artificial asexual plant reproduction involve?

A

Using cuttings, which are part of a healthy plant’s stem that is planted where it will grow roots and develop into a new plant