a) The diagram below describes the stages of aerobic respiration. Study it and answer the questions that follow. Stage I: Glucose → Pyruvate (Cytoplasm) Stage II: Pyruvate → Acetyl CoA (Mitochondrial matrix) Stage III: Acetyl CoA → CO2 + H2O + ATP (Mitochondrial matrix/Inner membrane) (i) Name Stage I of aerobic respiration. (1 mark) (ii) Name Stage III of aerobic respiration. (1 mark) (iii) State the location in the cell where Stage I occurs. (1 mark) (iv) Name the organelle in which Stages II and III occur. (1 mark) (v) State the net number of ATP molecules produced during Stage I. (1 mark) b) Explain briefly how oxygen debt is incurred and repaid in humans during and after vigorous exercise. (6 marks) c) (i) State TWO ways in which the process of respiration is important to plants. (2 marks) (ii) State TWO ways in which the process of respiration is important to animals. (2 marks)