Write the overall chemical equation representing the above definition of respiration.

In what form is the energy liberated in respiration?

State whether the following statements are true (T) or false (F):

1. Strenuous physical exercise may cause fatigue due to accumulation of CO₂ in the blood.
2. No CO₂ is produced in anaerobic respiration in the human body.
3. Breathing and gaseous transport are one and the same thing.
4. CO₂ is transported to the lungs by the blood in two forms: as bicarbonates and as carbamino-haemoglobin.
5. Tissue respiration means chemical changes occurring inside the cell.

Match the items in Column I with those in Column II