Question

Identify the set of correct statement:
A. The flowers of Vallisneria are colourful and produce nectar. 
B. The flowers of waterlily are not pollinated by water. 
C. In most of water-pollinated species, the pollen grains are protected from wetting. 
D. Pollen grains of some hydrophytes are long and ribbon like. 
E. In some hydrophytes, the pollen grains are carried passively inside water. 
Choose the correct answer from the options given below

• A. C, D and E only
• B. A, B, C and D only
• C. A, C, D and E only
• D. B, C, D and E only

Answer 1

The Correct Option is D

Evaluation of Statements on Pollination

Statement A:

The flowers of Vallisneria are colourful and produce nectar.

This statement is incorrect because Vallisneria, a submerged aquatic plant, has small, inconspicuous flowers that do not produce nectar. These flowers are adapted for water pollination.

Statement B:

The flowers of water lily are not pollinated by water.

This statement is correct. Water lilies are pollinated by insects (entomophily), not by water. The large, showy flowers of water lilies attract pollinators like bees and beetles.

Statement C:

In most of water-pollinated species, the pollen grains are protected from wetting.

This statement is correct. Water-pollinated species typically have pollen grains that are adapted to float and resist wetting, such as being coated with a waterproof layer.

Statement D:

Pollen grains of some hydrophytes are long and ribbon-like.

This statement is correct. Some hydrophytic plants, like seagrasses, have long, ribbon-like pollen grains that help them remain buoyant in the water.

Statement E:

In some hydrophytes, the pollen grains are carried passively inside water.

This statement is correct. In some water-pollinated plants, such as those with floating pollen, the pollen grains are carried passively by water currents to fertilize other plants.

Conclusion

The correct answer is: (4) B, C, D and E only.