Epidermal Tissues

Q. ___ present in the walls of cork cells makes them impervious to gases and water.

1. Lignin
2. Pectin
3. Cuticle
4. Suberin

Q.

Which is not a function of the epidermis?

1. Protection from adverse condition

2. Gaseous exchange

3. Conduction of water

4. Transpiration

Q.

How do the cells of epidermal tissue form a continuous layer without intercellular spaces?

Q.

Which of the following is the function of guard cells?

1. Meristematic tissue

2. None of these

3. Permanent tissue

4. Connective tissue

Q. Bryophytes differ from pteridophytes in _____.

1. being non-vascular
2. producing seeds
3. being vascular
4. producing naked seeds

Q.

Name the innermost germinative layer of the epidermis.

Q. How do the following structures help in respiration in plants?
(a) Lenticels.
(b) Stomata.
(c) Root hairs.

Q. Which of the following is not a function of epidermis?

1. Conduction of water
2. Protection from adverse condition
3. Transpiration
4. Gaseous exchange

Q. Transpiration helps in heating up the plant's surface.

1. True
2. False