Physiological Adaptation

Q.

Which animal is capable of obtaining water by oxidation of lipid?

1. Mole

2. Kangaroo rat

3. Rat

4. Earthworm

Q.

CAM helps the plants in

1. Reproduction

2. Conserving water

3. Secondary growth

4. Disease resistance

Q. An example of CAM plant is

1. Lemon Grass (Cymbopogon flexuosus)
2. Black Nightshade (Solanum nigrum)
3. Sugarbeet (Beta vulgaris)
4. Snake Plant (Sanseveria trifasciata)

Q. CAM plants open their stomata during night only because they tend to

1. Promote rate of dark reaction
2. Minimise rate of transpiration
3. Promote the rate of light reaction
4. Maximise rate of transpiration

Q.

CAM helps the plants in

1. Reproduction

2. Conserving water

3. Secondary growth

4. Disease resistance

Q. Assertion : Seals are well adapted to live in polar regions.
Reason : Seals are mammals with shorter extremities and a thick layer of fat under their skin.

1. Both assertion and reason are true but the reason is not the correct explanation for the assertion
2. Assertion is true but the reason is false
3. Both assertion and reason are true and the reason is the correct explanation for the assertion
4. Both assertion and reason are false

Q.

CAM helps the plants in

1. Reproduction

2. Conserving water

3. Secondary growth

4. Disease resistance

Q. The carbon dioxide acceptor in CAM plants is

1. Malic acid
2. Oxalo-acetic acid
3. Pyruvic acid
4. Phosphoenol pyruvic acid

Q. Insectivorous plants usually grow in soil, which are deficient in

1. Nitrogen
2. Water
3. Organic matter
4. Ca or Mg

Q. CAM plants are mostly

1. Tropical plants
2. Succulents
3. Mangroves
4. Monocots

Q. Two chief function of leaves are

1. Photosynthesis and respiration
2. Respiration and digestion
3. Photosynthesis and transpiration
4. Transpiration and respiration

Q. In CAM plants, $C{O}_2$ required for photosynthesis enters the plant during

1. Daytime when stomata are open
2. Daytime through lenticels
3. Night when stomata are open
4. Night when hydathodes are open

Q. Insectivorous plants are adapted to soils

1. Deficient in nitrogenous compounds
2. Deficient in water
3. Rich in water
4. Deficient in trace elements

Q. Stomata remain open at night in the

1. $C_3$ plants.
2. $C_4$ plants.
3. CAM plants.
4. Hydrophytic plants.

Q.

Which animal is capable of obtaining water by oxidation of lipid?

1. Rat

2. Earthworm

3. Mole

4. Kangaroo rat

Q.

Which animal is capable of obtaining water by oxidation of lipid?

1. Rat

2. Earthworm

3. Mole

4. Kangaroo rat

Q. Insectivorous plants are adapted to soils

1. Deficient in nitrogenous compounds
2. Deficient in water
3. Rich in water
4. Deficient in trace elements