Question

what is the krebs cycle?

Answer 1

Krebs cycle is the 3rd cyclic stage in Cellular Respiration

It starts off with the
2 acetyl groups formed from the preparatory reaction,
6NAD+ and 2FAD electron deficient coenzymes
and 2ADP + 2P electron deficient molecules

The output of the Krebs (another name for krebs is Citric Acid cycle) is
4CO2
6NADH and 2FADH2 electron rich molecules
2ATP


During the reaction the 2-carbon molecules (acetyl groups) attach with two 4-carbon molecules resulting in 2 6-Carbon citrate molecules. These get reduced stepwise releasing electrons for the coenzymes along the way and forming CO2 molecules.