Hydrophily

Q.

Both wind and water pollinated flowers are not very colourful and do not produce nectar and scent.

1. True

2. False

Q.

Pollinating agent for Vallisneria is wind.

1. True

2. False

Q. 1) different colours are seen in different fruits and flowers.why?

Q.

Water pollinated flowers are called _____.

1. Entomophilous

2. Anemophilous

3. Hydrophilous

4. Homophilous

Q. Study the following statements and select the correct option.
A. Tapetum nourishes the developing pollen grains
B. Hilum represents the junction between ovule and funicle
C. In aquatic plants such as water hyacinth and water lily, pollination is by water.
D. The primary endosperm nucleus is triploid

1. A and B are correct but C and D are incorrect
2. A, B and D are correct but C is incorrect
3. A and D are correct but B and C are incorrect
4. B, C and D are correct but A is incorrect

Q.

Which of the following statements is incorrect with respect to hydrophilly?

1. Hydrophilous flowers are not colourful​

2. Hydrophilous flowers produce numerous pollen grains​

3. Hydrophilous flowers do not produce nectar

4. Hydrophilous flowers are always submerged in water

Q.

Is zoestra a water pollinating flower?

Q.

Which of the following statements is/are correct for hydrophily?

(i) Pollination by water is rare in flowering plants and is limited mostly to monocotyledons.

(ii) In majority of aquatic plants such as water hyacinth and water lily pollination takes place by insects and wind

(iii) In most of the water pollinated species pollen grains are protected from wetting by a mucilaginous covering.

(iv) In Vallisneria, female flowers reach the surface of water and receive the pollen grains, whereas in Zostera, female flowers remain submerged and receive pollen grains under water.

1. Only (i) &(ii)

2. Only (iii) & (iv)

3. Only (ii)

4. (i), (ii), (iii) & (iv)