Sexual Reproduction in Flowering Plants Test

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Sexual Reproduction in Flowering Plants Test - 37

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Question 1
1 / -0

Pollination by slug and snails is called as

A
Ornithophilous

B
Malacophilous

C
Anemophilous

D
Chiropterophilous

Solution

Pollination is carried out by agent which transfers pollen from the pollen sac or anther to the stigma or ovule in the flower. There are many agents responsible for pollination, one of them are snails and slugs. Flowers that are pollinated with snail and slug are known as malacophious and pollination is called as malacophilous. Thus, the correct answer is 'Malacophilous.'
Question 2
1 / -0

Match the following.
List I List II
A Zoophily 1 Pollination by birds
B Ornithophily 2 Pollination by insects
C Entomophily 3 Pollination by bats
D Chiropterophily 4 Pollination by animals

A
A-4, B-1, C-2, D-3

B
A-2, B-1, C-4, D-3

C
A-4, B-3, C-2, D-1

D
A-1, B-4, C-2, D-3

Solution

Zoophily - pollination by animals
Ornithology - pollination by birds
Entomology - pollination by insects
Chiropterophily - pollination by bats.
Question 3
1 / -0

Which one of the following is an example of cleistogamy?

A
Sunflower

B
Vallisneria

C
Commelina

D
Calatropis

Solution

Cleistogamy is defined as auto - pollination where the bisexual flowers will not open and thus pollinate only the stigma of the same flower. Example is Commelina.
Question 4
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Wind pollinated flowers are

A
Small, producing nectar and dry pollen

B
Small, brightly coloured, producing large number of pollen grains

C
Small, producing large number of dry pollen grains

D
Large producing abundant nectar and pollen

Solution

Anemophilous or wind-pollinated flowers are small and unflamboyant. They are also devoid of scent, nectar, etc. They produce a very large quantity of dusty pollens so that the air is often charged with these. Another adaptation of anemophilous flowers is the branched bushy stigma capable of catching pollens from air easily. The anthers are often versatile, swinging freely in the air and the pollens are dry, light and smooth-walled.
Thus, the correct answer is option C.
Question 5
1 / -0

Wind pollination is common in

A
Orchids

B
Legumes

C
Lilies

D
Grasses
Solution
Correct Option: D
Explanation:
Pollination is the transfer of pollen grains from the anther to the stigma.
There are various kinds of agents of pollination, namely wind, water, insects, birds etc.
Wind pollination or anemophily happens when pollination occurs through the action of wind.
It is commonly seen among grasses or monocots.
For pollination to occur through wind these plants produce a large amount of pollen which are lightweight, dry, feathery and non-sticky.
They have inconspicuous flowers.
Their stigma is large and elaborate.
Orchids are pollinated by bees, wasps, flies etc.
Legumes are pollinated by honeybees mainly.
Lilies are pollinated by insects like bees and butterflies.
Hence, wind pollination or anemophily occurs in grasses.
Question 6
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Which of the following type of gynoecium is associated by wind pollination?

A
b

B
a

C
c

D
d

Solution

From the given picture, option (b) will easily get pollinated with the help of wind. It is because of the appearance and the light weight of the pollen. This method of pollination is called as anemophily.
Question 7
1 / -0

Triple fusion in angiosperm is the fusion of second sperm with

A
Antipodal cell and one synergid cell

B
Two antipodal cells

C
Two synergid cells

D
Two polar nuclei

Solution

Fusion of second sperm cell with two polar nuclei results in the formation of a diploid zygote, as well a triploid endosperm.
Question 8
1 / -0

The cell that divides to form the gametic nuclei in angiosperms is

A
Vegetative cell

B
Generative cell

C
Tube cell

D
Antheridial cell

Solution

Generative cell in the pollen grain divides into two male gametes, if it has not divided already.
So, the correct answer is 'generative cell'
Question 9
1 / -0

The transfer of pollen grain from the stamen to the stigma of the same
flower is

A
Autogamy

B
Allogamy

C
Geitonogamy

D
Xerogamy

Solution

Autogamy or self-fertilization is generally defined as the fusion of two gametes from the same individual. In flowering plants, it is the transfer of pollen grains from the stamen to the stigma of the same flower.
Autogamy has advantages in some plants making them not dependent on pollinating agents for fertilization. The disadvantage is that it results in less genetic diversity in species.
The answer is A.
Question 10
1 / -0

Pollination characteristically occurs in

A
Angiosperms and fungi

B
Angiosperms and Gymnosperms

C
Pteridophytes and Angiosperms

D
Bryophytes and Angiosperms

Solution

Pollination is the process by which pollen is transferred from the anther to the stigma of the plant. This process is common in angiosperms and gymnosperms.

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Re-Attempt Weekly Quiz Competition

	List I		List II
A	Zoophily	1	Pollination by birds
B	Ornithophily	2	Pollination by insects
C	Entomophily	3	Pollination by bats
D	Chiropterophily	4	Pollination by animals

Sexual Reproduction in Flowering Plants Test - 37

Result

Sexual Reproduction in Flowering Plants Test - 37

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Question 1

Ornithophilous

Malacophilous

Anemophilous

Chiropterophilous

Solution

Question 2

A-4, B-1, C-2, D-3

A-2, B-1, C-4, D-3

A-4, B-3, C-2, D-1

A-1, B-4, C-2, D-3

Solution

Question 3

Sunflower

Vallisneria

Commelina

Calatropis

Solution

Question 4

Small, producing nectar and dry pollen

Small, brightly coloured, producing large number of pollen grains

Small, producing large number of dry pollen grains

Large producing abundant nectar and pollen

Solution

Question 5

Orchids

Legumes

Lilies

Grasses

Solution

Question 6

b

a

c

d

Solution

Question 7

Antipodal cell and one synergid cell

Two antipodal cells

Two synergid cells

Two polar nuclei

Solution

Question 8

Vegetative cell

Generative cell

Tube cell

Antheridial cell

Solution

Question 9

Autogamy

Allogamy

Geitonogamy

Xerogamy

Solution

Question 10

Angiosperms and fungi

Angiosperms and Gymnosperms

Pteridophytes and Angiosperms

Bryophytes and Angiosperms

Solution

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