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Stomatal Transpiration.

The scientist...

Question

The scientist, who proposed that production of glycolic acid in guard cells is an important factor in stomata opening is

A

Kumar

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B

Steward

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C

Zelitch

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D

Lewitt

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Solution

The correct option is C Zelitch
Zelitch (1963) proposed that stomata open due to the production of glycolic acid by photorespiration in guard cells under low concentration of carbon dioxide. He suggested that glycolate also participates in the ATP formation by producing carbohydrate.

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(i) stomata opens when guard cells are turgid.
(ii) stomata closes when guard cells are turgid.
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Reason: Shrinking of guard cells results in the opening of stomatal pore.

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