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Question

Graminaceous stomata

A
Are found in monocotyledonous plants
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B
Have thin walled middle region
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C
Have bean-shaped guard cells
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D
Have thick end walls
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Solution

The correct option is A Are found in monocotyledonous plants
In monocots, guard cells are ellipsoidal or dumb-bell shaped (called graminaceous stomata or poaceous stomata).
These stomata have thin end walls and thick walled middle region.
In dicots, guard cell is kidney or bean shaped.

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