Respuesta :

Answer:

Cell respiration begins with Glycolysis .

Explanation:

Glycolysis  is the first and initial step in the cellular respiration. Cellular respiration is the anaerobic process, which takes place in cytosol of the cells. Two molecule of pyruvate(CH3COCOO-) are formed from 1 molecule  of  glucose(C6H12O6)through glycolysis. The  NADH and  ATP are high energy molecules formed when the free energy are released. It is the process which takes place through a series of ten enzyme catalysed reactions. 10 enzymes are required to break down the sugar molecule. It occurs in cytoplasm.