NEET Biology question
Not in NEET syllabus
Arrange the events of opening of stomata in the correct sequence and choose the correct option accordingly.
I. Lowering of osmotic potential of guard cells II. Decline in guard cell solutes III. Rise in potassium ion level in guard cells IV. Guard cells absorb water from neighbouring epidermal cells V. Guard cells become flaccid VI. Guard cells swell and make a pore between them
Answer: (C)
Solution
Opening begins with active K⁺ uptake into guard cells (III), which lowers their osmotic potential (I); this draws in water from neighbouring epidermal cells by osmosis (IV), and the
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