Consequences of not enough O2 available for respiration

- No final acceptor of electrons from the ETC - ETC stops functioning - No more ATP is produced via OP - NADH + FADH2 aren’t oxidised by an electron carrier - No oxidised NAD + FAD are available for dehydrogenation in the KC - The KC stops - But still a way for cells to produce some ATP in low O2 conditions through anaerobic respiration