Guard cells are ______ shaped in the dicot plants.

bean

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oval

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dumb-bell

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conical

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Solution

The correct option is A bean
Guard cells are specialised epidermal cells that operate to open microscopic holes in the plant surface, allowing carbon dioxide from the external atmosphere to diffuse into the chlorenchyma tissue for photosynthesis. In dicot plants, these cells are bean/kidney shaped, whereas in monocot plants, they are dumb-bell shaped.

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