Study the pathway given below. In which of th | vedclass

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(C) The given pathway represents the $C_4$ cycle (Hatch-Slack pathway). $A$ represents the primary fixation of $CO_2$ in the mesophyll cells,where $PE

Vedclass · Accepted Answer

Fixation $\rightarrow$ Decarboxylation $\rightarrow$ Regeneration

Vedclass · Answer

(C) The given pathway represents the $C_4$ cycle (Hatch-Slack pathway). $A$ represents the primary fixation of $CO_2$ in the mesophyll cells,where $PEP$ (Phosphoenolpyruvate) combines with $CO_2$ to form a $C_4$ acid (Oxaloacetate). $B$ represents the decarboxylation step in the bundle sheath cells,where the $C_4$ acid releases $CO_2$ to enter the Calvin cycle and converts into a $C_3$ acid. $C$ represents the regeneration of $PEP$ from the $C_3$ acid in the mesophyll cells to continue the cycle. Therefore,the correct sequence is Fixation $\rightarrow$ Decarboxylation $\rightarrow$ Regeneration.

Study the pathway given below. In which of the following options are the correct words for all the three blanks $A$,$B$,and $C$ indicated?

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