Hydrophily

Q.

Long ribbon-like pollen grains are released underwater by

1. Zostera

2. Vallisneria

3. Hydrilla

4. Water hyacinth

Q.

All hydrophilous plants are hydrophytes, but all hydrophytes are not hydrophilous.

1. True

2. False

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 winds.

(iii) In most of the water pollinated species pollen grains are protected from getting wet 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)

Q. Match the following
$\begin{array}{cccc}A.& Zoophily& 1.& Pollinationbybirds\\ B.& Ornithophily& 2.& Pollinationbyinsects\\ C.& Entomophily& 3.& Pollinationbybats\\ D.& Chiropterophily& 4.& Pollinationbyanimals\end{array}$

1. A – 1, B – 2, C – 3, D – 4
2. A – 4, B – 1, C – 2, D – 3
3. A – 4, B – 2, C – 1, D – 3
4. A – 3, B – 2, C – 1, D – 4

Q.

Match the following:
$\begin{array}{cccc}A.& \text{Zoophily}& 1.& \text{Pollination by birds}\\ B.& \text{Ornithophily}& 2.& \text{Pollination by insects}\\ C.& \text{Entomophily}& 3.& \text{Pollination by bats}\\ D.& \text{Chiropterophily}& 4.& \text{Pollination by animals}\end{array}$

1. A – 4, B – 2, C – 1, D – 3

2. A – 1, B – 2, C – 3, D – 4

3. A – 3, B – 2, C – 1, D – 4

4. A – 4, B – 1, C – 2, D – 3