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WorksheetsPollination
Total questions: 26
Worksheet time: 13mins
Name the floral rewards provided to animals that help in pollination.
Nectar
Pollen Grains
Both 1 and 2
None of these
Which type of pollination is examplified in the video?(Hint:Name the type of pollination on the basis of the pollinating agent)
Entmophilous
Ornithophilous
Anemophilous
None
Which type of outbreeding devices prevents both autogamy as well as geitonogamy?
Monoecy
Dioecy
Heterostyly
Self Incompatibility
Geitonogamy is genetically similar to self-pollination but functionally similar to crosss-pollination because
Geitonogamy involves flowers of the same plant so it is similar to self-pollination and it also requires pollinating agent so it is similar to cross-pollination.
Geitonogamy involves two different flowers of the same plant and does not result in genetic variation in the progeny.
Both 1 and 2.
None of the above
Mechanisms that ensure self-pollination include:
Chasmogamy
Cleistogamy
Both 1 and 2
None of the above
In self-incompatible species:
Self-pollination does not lead to seed formation.
Pollen grains of a flower do not germinate on the stigma of the same flower.
There is presence of similar self-sterile genes.
All of the above.
What helps pollen move form one plant to another?
hummingbirds
bees
butterflies
all of the above
Pollination happens when pollen from another flower touches the _______.
petal
sepal
pistil
After being pollinated, a flower will produce a _______.
seed
another flower
magic spell
bird
Check ALL of the animals that are pollinators.
moths
butterflies
worms
bats
eagles
Check all of the ways that pollinators help with pollination.
Pollinators move pollen from one flower to another
Pollinators pick up seeds from the ground
Pollinators move pollen from the stamen to the pistil
Pollinators eat the pollen
Pollinators help the plant make new seeds
1. Which of the following statements on cross-pollination is not true?
Pollen from a flower is transferred to on the stigma of a different flower on another plant
Cross-pollination produces health offspring
An example of a new variety of plant produced is the orchid.
Pollen from a flower is transferred to the stigma of a different flower on the same plant.
1. Diagram 21 shows self-pollination occurring in a flower.
Which of the following is the next step?
A pollen tube will emerge from a pollen grain
The anther develops into the seed
The stamen and stigma wilt
The sepal shrinks and falls off
3. Why are flowers colourful?
To attract insects for pollination
To produce good seeds from the flowers
To produce good fruits
To help the plant making food
4. Which of the following plants is pollinated by the wind?
Morning glory
Flame of the Forest
Orchid
Maize
5. Which characteristics of plants pollinated by wind and insects is not true?
Characteristics Pollinated Pollinated
by wind by insects
Pollen Size Small Big
Style Long Short
Stalk Long/ Outside the Short
leaf
Scent Fragrant Fragrant
6. Self-pollination is a process that happens
I when the pollens from a flower is transferred to the stigma of the same flower
II when the pollens from a flower is transferred to the stigma of a different flower on the same plant
III when the pollens from a flower is transferred to the stigma of a flower on a different plant
I only
I and II only
II and III only
I, II and III
7. A flower produces a lot of pollen grains that are light, small and smooth. It has long filaments that dangle out of the flower. This flower is most probably found on a
I lalang
II hibiscus plant
III maize plant
I and II only
I and III only
II and III only
I, II and III
8. Diagram 22 shows a bee that lands on a flower.
Which of the following is probably a characteristic of the flower?
White in colour
Scentless
Short and sticky stigma
Has many pollen grains
10. A plant has big anthers that dangle out from the flower on long filaments. It has a long and hairy stigma. The pollen grains are most probably transferred by
animals
wind
human
water
How does insect pollination benefit the insect?
The insect uses the fertilized ovule as food.
The insect uses the plant's nectar as food.
The insect uses the plant's pollen as food.
The insect uses the plant's leaves and petals as food.
Place the following events in sequence:
A) Pollen is deposited on a pistil;
B) Pollen fertilizes an ovule;
C) A honeybee collects pollen
B, C, A
A, C, B
C, A, B
B, A, C
Pollination is __________________________.
A)Insects carry pollen from plant to plant.
B)Birds take seeds.
C)Pollen is carried by the wind and animals.
D) Both A and C.
