Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Sexual Reproduction in Flowering Plants

Question:

Identify the correct description about the given figure:

Options:

Water-pollinated flowers with stamens covered in a mucilaginous coating.

Wind-pollinated plant inflorescence with flowers featuring well-exposed stamens.

Cleistogamous flowers exhibiting self-pollination (autogamy).

Dense inflorescence demonstrating complete self-pollination (autogamy).

Correct Answer:

Wind-pollinated plant inflorescence with flowers featuring well-exposed stamens.

Explanation:

The correct answer is Option (2) - Wind-pollinated plant inflorescence with flowers featuring well-exposed stamens.

Pollination by wind is more common amongst abiotic pollinations. Wind pollination also requires that the pollen grains are light and non-sticky so that they can be transported in wind currents. They often possess well-exposed stamens (so that the pollens are easily dispersed into wind currents, and large often-feathery stigma to easily trap air-borne pollen grains. Wind- pollinated flowers often have a single ovule in each ovary and numerous flowers packed into an inflorescence; a familiar example is the corn cob – the tassels are nothing but the stigma and style which wave in the wind to trap pollen grains. Wind-pollination is quit common in grasses.