MPSC Rajyaseva 2025 GS Paper 1 — Question 57
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जर संरक्षक पेशीमध्ये ____________ घटक जमा झाले तर रंध उघडेल. Stomata will open if there is accumulation of the following element in the guard cells ____________.
1)(1) मॅग्नेशियम
2)(2) पोटॉशियम✓ Correct
3)(3) लोखंड
4)(4) जस्त
Stomatal opening is driven by the active uptake of potassium (K+) ions into guard cells, which lowers their water potential and causes water to enter osmotically, making them turgid and opening the pore.
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