Q. No.Which component of Jute, Flax and Hemp are commonly used?
(1) Phloem fibres
(2) Xylem fibres
(3) Sieve tubes
(4) All of the above
(1) Phloem fibres
(2) Xylem fibres
(3) Sieve tubes
(4) All of the above
Epidermis in plant is generally
1. Single layered
2. Double layered
3. Triple layered
4. Present in patches
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
Opening and closing of stomata is a function of
(1) Cuticle
(2) Guard cell
(3) Waxy layer
(4) Xylem
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
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