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  • The stomatal pore is guarded by two kidney shaped guard cells Name the epidermal cells surrounding the guard cells How does a guard cell differ from an epidermal cell Use a diagram to illustrate your answer

The stomatal pore is guarded by two kidney-shaped guard cells. Name the epidermal cells surrounding the guard cells. How does a guard cell differ from an epidermal cell? Use a diagram to illustrate your answer.

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Ans. The epidermal cells surrounding the guard cells are called subsidiary cells. Following are the differences between guard cells and epidermal cells.

Guard Cells

Epidermal Cells

(i) Guard cells are bean or kidney-shaped.

(i) Epidermal are barrel-shaped.

(ii) Chloroplast is present in guard cells.

(ii) Epidermal cells lack chloroplast.

(iii) Guard cells are smaller.

(iii) Epidermal cells are bigger.

(iv) Thick and non-uniform cell walls are present in guard cells.

(iv) Thin and uniform cell walls are present in epidermal cells.

 

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