A waxy thick layer which prevent water loss is
1. Cuticle
2. Guard cell
3. Epidermis
4. Stomata
Epidermis in plant is generally
1. Single layered
2. Double layered
3. Triple layered
4. Present in patches
The most important function of the trichomes is:
1. | They prevent water loss due to transpiration |
2. | They prevent herbivory |
3. | They are sensory structures that decipher the wind velocity and direction |
4. | They play an important part in pollination of plants |
Cuticle is not found in
1. Stem
2. Branches
3. Leaves
4. Roots
Mark the incorrect statement with respect to guard cells in stomata
1. In grasses these are dumb-bell shaped
2. They possess chloroplasts
3. Regulate opening and closing of stomata
4. Outer walls are thick and inner walls are thin in dicots
Root hairs are ____________ and formed from __________zone of root.
1. unicellular, maturation
2. multicellular, elongation
3. multicellular, maturation
4. unicellular, elongation
Given below is the diagram of a stomatal apparatus. In which of the following, all the four parts labelled as A, B, C and D are correctly identified:
A | B | C | D | |
1. | Guard cell | Stomatal aperture | Subsidiary Cell | Epidermal Cell |
2. | Epidermal Cell | Guard Cell | Stomatal aperture | Subsidiary cell |
3. | Epidermal Cell | Subsidiary Cell | Stomatal aperture | Guard Cell |
4. | Subsidiary Cell | Epidermal Cell | Guard Cell | Stomatal aperture |
Epidermal cells are parenchymatous with __________ amount of cytoplasm lining, the cell wall and _______ vacuole.
(1) Small, large
(2) Large, small
(3) Small, no
(4) Large, no