Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Botany (Plant Biology)Plant Structure & Reproduction
What happens to the stoma in the epidermis of leaves when guard cells lose water?
- A.It remains unchanged
- B.It opens
- C.It ruptures
- D.It closesCorrect answer
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Practice these MCQs in the appQuick fact: When guard cells lose water, they become flaccid and the stoma closes.