Opening and closing of stomata is a function of
1. Cuticle
2. Guard cell
3. Waxy layer
4. Xylem
The vascular system in plant consist of
1. | Xylem and phloem |
2. | Xylem parenchyma and cortex |
3. | Epidermis and cortex |
4. | None of the above |
A waxy thick layer which prevent water loss is
1. Cuticle
2. Guard cell
3. Epidermis
4. Stomata
Trichomes help in
1. | Preventing water loss |
2. | Have sensory role |
3. | Help in combating grazing animals |
4. | None of the above |
In plant stem the epidermal hairs are called
1. | Cilia | 2. | Trichomes |
3. | Trichoderms | 4. | Trichromes |
In leaves the ground tissue consist of thin walled chloroplast containing cells and is called____.
1. Mesophyll
2. Chlorophyll
3. P250
4. Chromophore
Transpirational rate is controlled by
1. Xylem
2. Phloem
3. Guard cell
4. Leaves
The stomatal aperture, guard cell and the surrounding subsidiary cells are together called________.
1. Stomata
2. Stomatal apparatus
3. Stomatal aperture
4. Cuticle
Cuticle is not found in
1. Stem
2. Branches
3. Leaves
4. Roots
All tissue except ____________ constitute the ground tissue.
1. | Epidermis |
2. | Vascular bundles |
3. | Both (1) and (2) |
4. | Cuticle |