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Question

Conversion of starch to organic acids is required for

A
Stomatal opening
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B
Stomatal closing
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C
Stomatal formation
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D
Stomatal activity
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Solution

The correct option is A Stomatal opening
According to Lloyd the stomatal movement is regulated by interconversion of starch and organic acids. When starch is converted into organic acid in the presence of enzymes and light, guard cells get turgidity and eventually causes the opening of stomata.

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