This is what’s important. When CP is broken down releasing energy to replenish ATP, the creatine component produces a waste ...

If oxygen is available to the cell then the pyruvate molecules can be further broken down in stage two to release more energy and produce a greater quantity of ATP. A pyruvate molecule enters the ...

Anaerobic close anaerobicWithout oxygen. respiration does not need oxygen (unlike aerobic respiration). It is the release of a relatively small amount of energy in cells by the breakdown of food ...

Through a series if small steps, free energy is released from sugar and stored in carrier molecules in the cell (ATP and NADH, not shown). On the right, the direct burning of sugar requires a ...