Which of the following are true with regard to anaerobic respiration in bacteria?
- The final electron acceptor is an inorganic substance other than molecular oxygen
- The number of ATP molecules produced per glucose molecule is more than that produced in aerobic respiration
- The number of ATP molecules produced per glucose molecule is less than that produced in aerobic respiration
- Only substrate level phosphorylation is used to generate ATP
- P and S only
- Q and S only
- P and R only
- P, Q and S only