1
Question
I. Transpiration and gaseous exchange occur mainly through stomata.
II. Cell wall of guard cells are homogenous in nature.
III. Guard cells are bean shaped in dicots.
The correct statements are.
I. Transpiration and gaseous exchange occur mainly through stomata.
II. Cell wall of guard cells are homogenous in nature.
III. Guard cells are bean shaped in dicots.
The correct statements are.
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Solution
The correct option is C Only I and III
Stomata are meant for the gaseous exchange but are also the main source of
transpiration. Each stomata is surrounded by two small but specialized
green epidermal cells called guard cell. In most of the plants, the guard cells
are kidney or bean-shaped in outline. The concave-convex curvature of two guard
cells is variable and causes the stomatal pore to open and close.
So, the correct option is C.
Stomata are meant for the gaseous exchange but are also the main source of transpiration. Each stomata is surrounded by two small but specialized green epidermal cells called guard cell. In most of the plants, the guard cells are kidney or bean-shaped in outline. The concave-convex curvature of two guard cells is variable and causes the stomatal pore to open and close.
So, the correct option is C.
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