Question

The primary acceptor during CO2 fixation in C3 plants is
(1) Ribulose bisphosphate
(2) Glycolate
(3) Phosphoenolpyruvate
(4) Triose phosphate

Answer 1

____________here is ur answer_______
C3 plants use rubisco to react CO2 with ribulose bi phosphate.
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Answer 2

Answer:

The primary acceptor during CO2 fixation in C3 plants is Ribulose bisphosphate (RuBP).

Explanation:

Ribulose bisphosphate (RuBP) is a 5 carbon compound, present in mesophyll cells of C3 plants. In C3 plants carbon fixation and photosynthesis occur in mesophyll cells at the surface of leaf.

More than 95% of land plants are included in C3 plants.  

Calvin cycle equation in C3 plants:

CO2 (from stomata) + RuBP (plant mesophyll) --> 2 3-PGA

PGA enters Calvin cycle inside the mesophyll cells in plants --> more amount of RuBP to fix more CO2 + sugar during photosynthesis.

RuBisCO catalyzes the reaction between CO2 and RuBP to produce 2 molecules of 3-PGA.  

C3 plants do not ability to grow under very high temperature. Due to high temperature RuBisCO starts to incorporate more oxygen into RuBP which results in to photorespiration. RuBP is generated as the result of photorespiration reaction catalyzed by RuBisCO.