Plant Reproduction

Question 1

Where in the flower are male sex cells produced??

Answer 1

Inside of anther

Question 2

What is the name given to the female gamete ??

Answer 2

The ovule

Question 3

Where are the female sex cells produced??

Answer 3

The carpel

Question 4

3 characteristics of a normal flower

Answer 4

Scented
Has a stem
Petals

Question 5

Name all 13 parts of a flower

Answer 5

Receptable
Petal
Anther
Filament 
Sepal
Nectary
Flower stalk
Ovule
Ovary
Carpel
Style
Stigma
Stamen

Question 6

What is the function of a sepal??

Answer 6

Protects flower in bud

Question 7

What is the function of the petals

Answer 7

To attract insects

Question 8

What is the function of the anther ??

Answer 8

To produce pollen

Question 9

What is the function of a stigma ??

Answer 9

To collect pollen

Question 10

What is the function of the ovary ??

Answer 10

Produces ovules

Question 11

What is the function of the nectary??

Answer 11

Produces nector to attract insects

Question 12

What is another term for pollination ??

Answer 12

Transferred

Question 13

When does pollination take place ??

Answer 13

When pollen from an anther is carried to a stigma

Question 14

What is self pollination ??

Answer 14

When pollen is carried to the stigma of the same flower

Question 15

What is cross pollination ??

Answer 15

When the pollen is carried to the stigma of another flower of the same type

Question 16

How is pollen carried ??

Answer 16

It gets brushed onto the body of a bee when it sucks nectar from a flower then the pollen is carried with it to another flower and the pollen grains are stick to the stigma

Question 17

Describe the substance of pollen

Answer 17

Light and not sticky

Question 18

Why does pollen need to be light ??

Answer 18

So it can blow in the wind

Question 19

What are the petals like on a) wind flowers b)insect flowers

Answer 19

A)small and very pale

B)big and brightly coloured

Question 20

What is the pollen like on a)insect flowers

B) wind flowers

Answer 20

A)little produced and is sticky

B)light,smooth and lots produced

Question 21

What are two advantages of self pollination??

Answer 21

No insects are needed to pollinate the flower

The flower could continue to self pollinate for as long as needed

Question 22

What is the advantage of cross pollination

Answer 22

A greater variety of flowers e.g brighter colours

Question 23

What is one disadvantage of self pollination

Answer 23

A lack of variety of flowers e.g colour

Question 24

What is one dis advantage of cross pollination??

Answer 24

An insect might not come to collect the pollen or there might not be strong winds

Question 25

What is the name given to the male gamete ??

Answer 25

The pollen grain

Question 26

Name 3 seeds which are used for human foods

Answer 26

Green beans
Sunflower seeds
Almonds

Question 27

Why are seeds used as food

Answer 27

Because they are a good source of energy

Question 28

What is seed dispersal??

Answer 28

When a seed is a carried away from the parent plant

Question 29

Why is seed dispersal necessary ??

Answer 29

Spreads the plant into new areas
Helps avoid disease
avoids competition from the parent plant for food,light and water

Question 30

Names the two trees that are dispersed by wind

Answer 30

Ash and sycamore

Question 31

How are fruits suited to wind dispersal

Answer 31

They’ve got wings and hairs to catch the wind

Question 32

How do animals help with seeds??

Answer 32

The seeds can catch onto fur or they may eat the seeds and then poo them out

Question 33

Name the 4 stages of seed germination

Answer 33

Stage1~ radicle grows down
Stage2~root hairs develop, plumule grows up
Stage3~plumule stays hooked until it’s above ground
Stage4~lateral roots grow,foliage leaves develop and start to photosynthesis

Question 34

What environmental conditions are necessary for germination ??

Answer 34

Air, damp and warmth