A) \[{{N}_{3}}\]
B) \[{{K}^{+}}\] ions
C) Starch
D) None of these
Correct Answer: A
Solution :
Opening of stomata does not affected by \[{{N}_{2}}\]nitrogen). \[{{N}_{3}}\] is present in free state in atmosphere/air which is used in nitrogen fixation by some important bacteria but not affect opening and closing of stomata. The opening of stomata mainly affected by \[{{K}^{+}}\]ions mechanism. The starch \[\to \] sugar interconversion theory was given by Sayere (1923) and further it was modified by Steward (1964).
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