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Question
The primary osmolite, which causes an opening and closing of stomata is
The primary osmolite, which causes an opening and closing of stomata is
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Solution
The correct option is B K-malate
According to most widely accepted theory of stomatal movement during day time starch is converted to organic acids like malic acid. This causes increase in proton concentration in guard cells. These protons are exchanged for potassium ions from surrounding subsidiary cells. The influx of potassium ions leads to inflow of water into guard cells which become turgid and stomata open.
According to most widely accepted theory of stomatal movement during day time starch is converted to organic acids like malic acid. This causes increase in proton concentration in guard cells. These protons are exchanged for potassium ions from surrounding subsidiary cells. The influx of potassium ions leads to inflow of water into guard cells which become turgid and stomata open.
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