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Q.
When stomata closes, which of the following events does not occur?
Transport in Plants
Solution:
Stomataare minute specialised pores on the epidermal layers of leaves. Closing and opening mechanism of stomata depends on some factors like photosynthetic production, turgidity of guard cells, sugar-starch interconversion, active $K ^{+}$ transport. According to the photosynthetic production theory, stomata close when $CO _{2}$ concentration is maximum and $O _{2}$ concentration is less.