The first step to respiration is glycolysis.
The first step of the process is the digestion.
glycolysis
The third step in aerobic cellular respiration is the Krebs cycle.
Glycolysis
In the Mitochondria
glycolysi- APEX
Cellular Respiration is a three step process; Glycolysis, the Krebs Cycle, and the Electron Transport Chain. Effective cellular respiration is an aerobic cycle, meaning that it requires oxygen. The first step, glycolysis, is an anaerobic process, meaning it does not require oxygen. Therefore, glycolysis is always able to take place. The next step is the Krebs Cycle. This is an aerobic process and does not take place in the absence of oxygen. If there is an absence of oxygen, bodily toxins such as ethyl alcohol and lactic acid are produced and cellular respiration is not carried out. To answer your question, a lack of oxygen is what disrupts cellular respiration.
Glycolysis or "Splitting of sugar", has to happen in the cell's cytoplasm before cellular respiration can occur. I hope this helps!
It breaks down polysaccharides such as starch. The next step is to metabolize fats and proteins.
The first step to respiration is glycolysis.
Glycolysis breaks down glucose to form the reactants of cellular respiration