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
A waxy thick layer which prevent water loss is
1. Cuticle
2. Guard cell
3. Epidermis
4. Stomata
Cuticle is not found in
1. Stem
2. Branches
3. Leaves
4. Roots
Opening and closing of stomata is a function of
(1) Cuticle
(2) Guard cell
(3) Waxy layer
(4) Xylem
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
In plant stem the epidermal hairs are called
(1) Cilia
(2) Trichomes
(3) Trichoderms
(4) Trichromes
Trichomes help in
(1) Preventing water loss
(2) Have sensory role
(3) Help in combating grazing animals
(4) None of the above
All tissue except ____________ constitute the ground tissue.
1. Epidermis
2. Vascular bundles
3. Both (1) and (2)
4. Cuticle
In leaves the ground tissue consist of thin walled chloroplast containing cells and is called____.
1. Mesophyll
2. Chlorophyll
3. P250
4. Chromophore