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Question

Shape of guard cells in graminae family is

A
Kidney shaped
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B
Oval
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C
Round
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D
Dumbbell shaped
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Solution

The correct option is D Dumbbell shaped
D. Dumbbell shaped
Reason: Stomata are found on the outer surface (epidermis) of the leaves and on delicate aerial organs in the form of minute pores. This stomata is surrounded by two epidermal cells, known as guard cell. They are in general, kidney shaped. The number of guard cell of a leaf stomata are two. The structure of guard cells in Graminae or grass family is dumbbell shaped.

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