Quiz 6. Sexual Reproduction in Flowering Plants

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It includes Pollination Part 1

Name *

1 point

The flower which do not open at all *

1 point

Chasmogamous flower

Cleistogamous flower

Unisexual flower

Bisexual flower

In this type, pollination is achieved within the same flower.

Transfer of pollen grains from the anther to the stigma of the same flower. It is called

1 point

Geitonogamy

Cleistogamy

Autogamy

Xenogamy

This is the only type of pollination which during pollination brings genetically different types of pollen grains to the stigma *

1 point

Xenogamy

Autogamy

Geitonogamy

Cleistogamy

Select the incorrect statement *

1 point

Majority of plants use biotic agents for pollination

The flower in which anthers and stigma are exposed, is called cleistogamous

The plant common pansy is also known as Viola

Only a small proportion of plants use abiotic agents

All are correct

............... flowers are invariably autogamous as there is no chance of cross-pollen landing on the stigma. *

1 point

Chasmogamous

Bisexual

Unisexual

Cleistogamous

Flowers which have single ovule in ovary and are packed into inflorescence are usually pollinated by *

1 point

Water

Wind

Insects

Lemurs

Some plants such as Viola (common pansy), Oxalis, and Commelina produces flowers.... *

1 point

Chasmogamous flower

Cleistogamous flower

Both types of above flower

Only unisexual flowers

Pollen grains coming in contact with the stigma is a chance factor in .... *

1 point

Water pollinated flowers

Wind and water pollinated flowers

Bees pollinated flowers

Moth pollinated flowers

In which flower, the flowers produce enormous amount of pollen when compared to the number of ovules available for pollination *

1 point

In wind pollinated flower

In water and wind pollinated flowers

In bees pollinated flowers

In animals pollinated flowers

Identify this figure and find A and B *

1 point

A is Bisexual and B is unisexual flower

A is unisexual and B is bisexual flower

A is chasmogamous and B is Cleistogamous flower

B is chasmogamous and A is Cleistogamous flower

............... flowers produce assured seed-set even in the absence of pollinators *

1 point

Chasmogamous

Cleistogamous

Geitonogamous

Bisexual

Pollination by ......... is quite rare in flowering plants and is limited to about ....... genera, mostly ........ cotyledons *

1 point

Wind, 40 genera, dicotyledons

Wind, 30 genera, monocotyledons

Water, 40 genera, dicotyledons

Water, 30 genera, monocotyledons

.......... is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant *

1 point

Autogamy

Geitonogamy

Cliestogamous

Xenogamy

Among the animals, insects, particularly .......... are the dominant biotic pollinating agents. *

1 point

Butterflies

Moths

Bees

Flies

Wind pollination is quite common in ..... *

1 point

Leguminous plant

Grasses

Solanaceae

Dicotyledonous

The aquatic plant having long and ribbon like pollen grain is *

1 point

Vallisneria

Hydrilla

Zostera

Water lily

Which is incorrect statement regrading wind pollinated flowers ? *

1 point

Often have a single ovule in each ovary

Numerous flowers packed into an inflorescence

A familiar example is the corn cob

The pollen grains are light and non-sticky

All are correct

Identify the figure and find incorrect statement *

1 point

a is unisexual flower and b is bisexual flower

a is bisexual flower and ensures autogamy

b is bisexual and ensures cross pollination

b brings genetically different types of pollen grains to the stigma

All are correct

Transfer of pollen grains from anther to the stigma of a different plant *

1 point

Autogamy

Geitonogamy

Xenogamy

Homogamy

Transfer of pollen grains from the anther to the stigma of another flower of the same plant *

1 point

Autogamy

Geitonogamy

Xenogamy

Homogamy

Which is most common aboitic pollinating agents ? *

1 point

Oxygen

Air

Water

Wind

Which characteristic is not required in wind pollinated flowers ? *

1 point

Pollen grains are light and non-sticky

The flower must be cleistogamous

They often possess well-exposed stamens

Large often-feathery stigma to easily trap air-borne pollen grains

All are correct

In corn cob, the long filamentous thread, the tassels are *

1 point

Stamens which wave in in the wind

Stigma which wave in the wind to trap pollen grains

Stigma and style which wave in the wind to trap pollen grains

Modified sepals and petals

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