Photosynthesis Ques 29

29. The carbon dioxide acceptor in Calvin cycle/ $C_3$-plants is

[1993, 95, 96, 99]

(a) Phospho-enol pyruvate (PEP)

(b) Ribulose 1, 5-diphosphate (RuBP)

(c) Phosphoglyceric acid (PGA)

(d) Ribulose monophosphate (RMP)

Show Answer

Answer : b

Hints & Solution

(b) The primary $CO_2$ acceptor in $C_3$ plants is Ribulose-1, 5-diphosphate (RuBP) which forms a 3 carbon compound 3-phosphoglyceric acid.



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