Question 1

g1.
Name the two processes that are important for flowers to produce seeds:

Accepted Answer

1. Pollination and 
2. fertilisation

Question 2

g2
.What is pollination?

Accepted Answer

The transfer of pollen between plants of the same species for the purpose of fertilisation

Question 3

g3.
What is fertilisation?

Accepted Answer

The fusion of the male and female sex cells to produce seeds

Question 4

g4.
Factors that facilitate pollination
What needs to happen for cross-pollination to occur?

Accepted Answer

Plants need the help of environmental factors like wind, water and the movement of pollinators such as insects, birds and mammals

Question 5

g5.
What is cross-pollination?

Accepted Answer

When pollen grains from one flower are transferred to the flower of a different plant

Question 6

g6.
Pollination by wind
How are plants that don’t have brightly -coloured petals and nectar pollinated?

Accepted Answer

by the wind

Question 7

g7
.Explain how pollination through wind occurs:

Accepted Answer

1.Anthers of wind-pollinated plants produce pollen
2. Pollen is taken up by the wind and carried to the stigmas of other plants of the same species

Question 8

g8.
Name of a couple of plant species that use wind pollination:

Accepted Answer

1.Grasses
2.  Cereal crops
3.  Wheat

Question 9

g9.
Pollination by water
How are plants that live in water usually pollenated?

Accepted Answer

1.By the movement of water
2.  Pollen grains from the stamen of one plant is carried across the surface of the water as the water flows until they reach the pistil of another flower

Question 10

g10.
Pollination by pollinators
What are pollinators?

Accepted Answer

1.  Animals such as insects, birds and mammals
2. They carry pollen from one flower to the next on their bodies as they move

Question 11

g11.
Name an important insect pollinator:

Accepted Answer

bees

Question 12

g12.
Describe how a bee pollinates flowers:
1. Bee collects pollen from flowers and takes it back to the hive
2. Pollen is used to make honey

Accepted Answer

3. Bees store pollen in special baskets on hind legs
4.  While bees gather pollen, some pollen sticks to hairs on the bee’s body
5.  When bee visits another flower, some pollen brushes off onto stigma of that flower

Question 13

g13.
Name a couple of insects besides bees that are insect pollinators:

Accepted Answer

1. Butterflies
2. Wasps
3. Flies
4. Beetles

Question 14

g14.
What attracts birds to flowers?

Accepted Answer

Bright colours, particularly red flowers

Question 15

g15.
What do flowers contain that birds drink?

Accepted Answer

Watery nectar

Question 16

g16
.Explain how birds pollenate flowers:

Accepted Answer

1.Bird drink the watery nectar from flowers
2.  Pollen collects on their beaks/heads and is transferred to next flower as they drink

Question 17

g17.
Name a couple of common bird pollinators:

Accepted Answer

1. Hummingbirds
2. Sunbirds

Question 18

g18.
Why is pollination by mammals less common?

Accepted Answer

Mammals are larger and are less reliable and accurate pollinators

Question 19

g19.
Which kind of mammals are important pollinators?

Accepted Answer

1. Flying mammals such as bats
2. Rats
3.  Monkeys

Question 20

g20.
How do mammals pollinate plants?

Accepted Answer

They carry pollen from one plant to the other when they eat parts of the plant or drink
nectar from flowers

Question 21

g21.
Adaption of flowers to promote pollination
Why have plants developed special adaptations?

Accepted Answer

To suit their particular method of pollination

Question 22

g22.
What do stamen that extend far away from flower indicate?

Accepted Answer

Flower is wind pollinated

Question 23

g23.
Where are the stamen of insect pollinated located?

Accepted Answer

Inside the flower

Question 24

g24.
Why are the pistils of insect pollinated flowers usually longer than stamens?

Accepted Answer

So that insects deposit pollen on the pistils on the way into the flower and pick up new pollen from the stamens

Question 25

g25.
What do beekepers do?

Accepted Answer

1. Work with bees to harvest and sell honey
2. Provide pollination services to farmers during periods when they need to ensure thattheir crops are pollinated

Question 26

g26.
Adaptations of wind and water-pollinated plants
Why do wind and water-pollinated plants need to produce a large amount of pollen grains?

Accepted Answer

Most of the pollen is blown/washed away rather than landing on another plant of the same species

Question 27

g27.
How are wind-pollinated plant adapted for pollination?

Accepted Answer

1.It is not sticky and can be blown off easily
2. Stigmas are usually large and feathert and sit outside of flower so they can catch pollen

Question 28

g28.
Adaptations of plants pollinated by pollinators
Shortly explain how plants that are pollinated by insects adapted for pollination:

1.Usually large and brightly coloured
2. Bees are attracted to white and yellow flowers

Accepted Answer

3.Pollen is sticky so that it doesn’t get blown away by wind – sticks to insect     when it is on the flower
4. Have a sweet scent to attract insects
5. Some have an unpleasant scent because they want to attract flies

Question 29

g29
Describe how flowers pollinated by mammals are adapted to pollination:

Accepted Answer

1. Have a strong scent and produce nectar for mammals to eat
2.  Produce more pollen – mammals have larger bodies and cannot pollinate accurately

Question 30

g30
.How many groups of flowers are in the daisy family?

Accepted Answer

2

Question 31

g31.
Explain the two groups of flowers in the daisy family:

Accepted Answer

1.Central disc had many tiny flowers – each with own stamens and pistils
2. Outer petals are separate flower that does not produce pollen, but attracts
pollinators to central disc
3. Outer petals provide a place for poor flyers, like beetles, to land

Question 32

g32.
The role of pollinators in food production
Why do pollinators play a major role in food production?

1.If crops are not pollinated, they will not form food for humans to eat and will not be able to reproduce

Accepted Answer

2.Commercial farms grow a large number of crops in one area and all these plants need to be pollinated at the same time
3.  Farmers need a high number of pollinators so that the plants can produce a good crop of fruit

Question 33

g33.
When do South African apple farmers introduce additional bees into an area?

Accepted Answer

When their trees need to be pollinated

Question 34

g34
How do sunflower farmers and beekeepers collaborate around pollination?

Accepted Answer

1.Beekeepers bring their bees to their area so that they can get the pollen of
sunflowers to make honey
2.  Sunflower farmers benefit by getting a better crop of sunflower seeds

NS

g.Sexual reproductions in Angiosperms Unit 2 – Pollination

Question	Answer
g1. Name the two processes that are important for flowers to produce seeds:	1. Pollination and 2. fertilisation
g2 .What is pollination?	The transfer of pollen between plants of the same species for the purpose of fertilisation
g3. What is fertilisation?	The fusion of the male and female sex cells to produce seeds
g4. Factors that facilitate pollination What needs to happen for cross-pollination to occur?	Plants need the help of environmental factors like wind, water and the movement of pollinators such as insects, birds and mammals
g5. What is cross-pollination?	When pollen grains from one flower are transferred to the flower of a different plant
g6. Pollination by wind How are plants that don’t have brightly -coloured petals and nectar pollinated?	by the wind
g7 .Explain how pollination through wind occurs:	1.Anthers of wind-pollinated plants produce pollen 2. Pollen is taken up by the wind and carried to the stigmas of other plants of the same species
g8. Name of a couple of plant species that use wind pollination:	1.Grasses 2. Cereal crops 3. Wheat
g9. Pollination by water How are plants that live in water usually pollenated?	1.By the movement of water 2. Pollen grains from the stamen of one plant is carried across the surface of the water as the water flows until they reach the pistil of another flower
g10. Pollination by pollinators What are pollinators?	1. Animals such as insects, birds and mammals 2. They carry pollen from one flower to the next on their bodies as they move
g11. Name an important insect pollinator:	bees
g12. Describe how a bee pollinates flowers: 1. Bee collects pollen from flowers and takes it back to the hive 2. Pollen is used to make honey	3. Bees store pollen in special baskets on hind legs 4. While bees gather pollen, some pollen sticks to hairs on the bee’s body 5. When bee visits another flower, some pollen brushes off onto stigma of that flower
g13. Name a couple of insects besides bees that are insect pollinators:	1. Butterflies 2. Wasps 3. Flies 4. Beetles
g14. What attracts birds to flowers?	Bright colours, particularly red flowers
g15. What do flowers contain that birds drink?	Watery nectar
g16 .Explain how birds pollenate flowers:	1.Bird drink the watery nectar from flowers 2. Pollen collects on their beaks/heads and is transferred to next flower as they drink
g17. Name a couple of common bird pollinators:	1. Hummingbirds 2. Sunbirds
g18. Why is pollination by mammals less common?	Mammals are larger and are less reliable and accurate pollinators
g19. Which kind of mammals are important pollinators?	1. Flying mammals such as bats 2. Rats 3. Monkeys
g20. How do mammals pollinate plants?	They carry pollen from one plant to the other when they eat parts of the plant or drink nectar from flowers
g21. Adaption of flowers to promote pollination Why have plants developed special adaptations?	To suit their particular method of pollination
g22. What do stamen that extend far away from flower indicate?	Flower is wind pollinated
g23. Where are the stamen of insect pollinated located?	Inside the flower
g24. Why are the pistils of insect pollinated flowers usually longer than stamens?	So that insects deposit pollen on the pistils on the way into the flower and pick up new pollen from the stamens
g25. What do beekepers do?	1. Work with bees to harvest and sell honey 2. Provide pollination services to farmers during periods when they need to ensure thattheir crops are pollinated
g26. Adaptations of wind and water-pollinated plants Why do wind and water-pollinated plants need to produce a large amount of pollen grains?	Most of the pollen is blown/washed away rather than landing on another plant of the same species
g27. How are wind-pollinated plant adapted for pollination?	1.It is not sticky and can be blown off easily 2. Stigmas are usually large and feathert and sit outside of flower so they can catch pollen
g28. Adaptations of plants pollinated by pollinators Shortly explain how plants that are pollinated by insects adapted for pollination: 1.Usually large and brightly coloured 2. Bees are attracted to white and yellow flowers	3.Pollen is sticky so that it doesn’t get blown away by wind – sticks to insect when it is on the flower 4. Have a sweet scent to attract insects 5. Some have an unpleasant scent because they want to attract flies
g29 Describe how flowers pollinated by mammals are adapted to pollination:	1. Have a strong scent and produce nectar for mammals to eat 2. Produce more pollen – mammals have larger bodies and cannot pollinate accurately
g30 .How many groups of flowers are in the daisy family?	2
g31. Explain the two groups of flowers in the daisy family:	1.Central disc had many tiny flowers – each with own stamens and pistils 2. Outer petals are separate flower that does not produce pollen, but attracts pollinators to central disc 3. Outer petals provide a place for poor flyers, like beetles, to land
g32. The role of pollinators in food production Why do pollinators play a major role in food production? 1.If crops are not pollinated, they will not form food for humans to eat and will not be able to reproduce	2.Commercial farms grow a large number of crops in one area and all these plants need to be pollinated at the same time 3. Farmers need a high number of pollinators so that the plants can produce a good crop of fruit
g33. When do South African apple farmers introduce additional bees into an area?	When their trees need to be pollinated
g34 How do sunflower farmers and beekeepers collaborate around pollination?	1.Beekeepers bring their bees to their area so that they can get the pollen of sunflowers to make honey 2. Sunflower farmers benefit by getting a better crop of sunflower seeds

"Know" box contains:
Time elapsed:
Retries: