Describe the major differentiating characters in between Calvin cycle and Hatch-Slack pathway of photosynthesis

Calvin cycle-
1) Found in both C3 and C4 plants
2)Primary acceptor of CO2 is RUBP
​3)First product formed is PGA which contains 3 carbon atoms
4)The enzyme for the 1st fixation of CO2 is RUBP carboxylase


​Hatch and Slack Parhway-
1)Found only in C4 plants
2)Primary acceptor of Co2 is PEP
3)First compound formed is OAA which contains 4 carbon atoms
4) The enzyme for the 1st fixation of C02 is PEP case
 
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C3 is Calvin cycle which involves only formation of C3 acid i.e. PGA and primary CO2 acceptor is RuBP.

Whereas C4 is hatch and slack pathway which involve formation of OAA and primary CO2 acceptor is PEP.

C4 pathway also follow C3 cycle but in C4 pathway C3 acid is formed in bundle sheath where as in C3 pathway C3 acid is formed in mesophyll.

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