ICSE Class 9 Answered

Hi Chitransh, 

One of the most important energy generation process of respiration is the Kreb's cycle. 

The enzymes involved in Kreb's cycle are: 

pyruvate dehydrogenase complex

aconitase

isocitrate dehydrogenase

alpha-ketogluterate dehydrogenase complex

succinyl CoA synthethase 

succinate dehydrogenase 

fumarase

malate dehydrogenase 

citrate synthetase 

These are just some of the important enzymes; respiration is a complex process and thus requires a wide array of enzymes other than the ones mentioned above.