Tag: aquatic plant adaptations

Questions Related to aquatic plant adaptations

Xerophytes are plants which grow in ____________.

  1. Dry areas

  2. Water

  3. Place where land and water meet

  4. Land


Correct Option: A

Vegetation of Rajasthan is

  1. Xerophytic

  2. Alpine

  3. Arctic

  4. Deciduous


Correct Option: A
Explanation:

Vegetation of Rajasthan is xerophytic. It is a geographic region with low rainfall, high temperature, loose and sandy soil. It consists of spiny shrub, cactus. Caatinga is a type of xerophytic vegetation.

Thus, the correct answer is 'Xerophytic.'

After the destruction of forests, what type of vegetation is expected to develop?

  1. Xerophytes vegetation

  2. Scrub vegetation

  3. Grassland vegetation

  4. Evergreen vegetation


Correct Option: A

The most common organic solute stored by xerophytes for maintaining osmotic and water potential is

  1. Glucose

  2. Sucrose

  3. Raffinose

  4. Proline


Correct Option: D

Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of :-

  1. Hydrophytes

  2. Xerophytes

  3. Mesophytes

  4. Epiphytes.


Correct Option: A
Explanation:

Answer is option A i.e. "Hydrophytes"
Hydrophytes are aquatic plants that live in aquatic environments either completely or partially submerged in water. As an adaptation, their vascular tissue and mechanical tissue are reduced. The cuticle is either completely absent or it is reduced, thin and poorly developed.
On contrary, xerophytes have heavy cuticle, vascular tissue and mechanical tissue. Mesophytes have moderate vascular tissue, mechanical tissue and cuticle and epiphytes are lower plants or mosses that live in marine environment, they are non-vascular.