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प्रश्न
Which one of the following helps in the opening of stomata?
विकल्प
Cobalt ions
Potassium ions
Magnesium ions
Aluminium ions
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उत्तर
Potassium ions
Explanation:
Potassium ions play a part in opening and closing the stomata holes. Guard cells become hypertonic and water enters them as the K+ ion concentration rises there. This swells them, and when the membrane stretches, the stomata pore opens. In the shutting of stomata, the reverse occurs. K+ ion concentration lowers; the cell becomes hypotonic and water leaves the cell, flaccid.
संबंधित प्रश्न
Photosynthesis in green plants is directly and indirectly dependent on so many plant structures.
Explain briefly the role of the following structures in this process is Mesophyll cells
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State the Location: Thylakoid
State the Location: Stomata
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Sam observed a slide containing the lower epidermis of a leaf under a microscope. A number of tiny openings between the epidermal cells were present as shown below in the diagram:
Name the cells that regulate the opening and closing of the structures.
Sam observed a slide containing the lower epidermis of a leaf under a microscope. A number of tiny openings between the epidermal cells were present as shown below in the diagram:
Which ion is responsible for the opening and closing of the openings?
Write the exact location of guard cells.
