Cellular Respiration stages?

Question

Can someone give me a simple description of the three stages of cellular respiration?

Answer 1

Glycolysis-take glucose (a 6 carbon sugar) and get 2 pyruvate molecules (a 3 carbon suguar), 2 NADH, and a net of 2 ATP

Pyruvate Dehydrogenase Complex-each pyruvate combines with co Enzyme A to get acetyle-CoA and a reduced NADH (in this stage we also get CO2 released) remember this is times 2!

Krebs Cycle- The acetyl CoA combines with oxaloacetate and through a series of substrates and enzyme you end up with 3 NADH, 2CO2, 1ATP, and 1 FADH2. because you have 2 acetyl CoA this cycle happens twice, so times 2 again!

Oxidative Phosphorylation- our goal here is to reoxidize all the electron carriers. So the oxdized form of NADH and FADH get reduced to NAD+ and FAD+ and the final electron acceptor is O2.

Some say there are three cycles, you can combine the first two as one cycle.

Hope that helps!