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Communication System Quiz Details


Q.

Identify the correct sequence of enzymes given below which participate in the regeneration phase of Calvin cycle.
I.   Ribulose-5-phosphate isomerase
II.  Ribulose-5-phosphate epimerase
III. Transketolase
IV.  Triose phosphate isomerase
a) VI, I, III, II           b) III, IV, II, I            c) IV, III, I, II          d) II, I, IV, III

AA
BB
CC
DD

A.

(c) Triose phosphate isomerase enzyme converts glyceraldehydes-3 phase molecule into dihydroxy acetone phosphate. Then an enzyme transketolase comes, which acts on sedoheptulose-7-phosphate molecule and changes it into ribulose-5-phosphate and xylulose-5-phosphate. Then ribulose-5-phosphate isomerase enzyme comes and acts on ribulose-5-phosphate. This reactionhas a molecule of ribulose-5-phosphate, while xylulose-5-phosphate molecule is also converted into ribulose-5-phosphate by ab other enzyme, ribulose-5-phosphate epimerase.

 



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