Analyse the following statements and identify the correct ones:
1. Statement 1: Pyruvate is a six carbon molecule.
Statement 2: Pyruvate is produced in the cytoplasm as a first step of cellular respiration.
Statement 3: Pyruvate is not produced in anaerobic respiration.
Statement 4: Pyruvate is broken down to carbon dioxide and water in the process of aerobic respiration.
Statement 2: Pyruvate is produced in the cytoplasm as a first step of cellular respiration.
Statement 3: Pyruvate is not produced in anaerobic respiration.
Statement 4: Pyruvate is broken down to carbon dioxide and water in the process of aerobic respiration.
2. Statement 1: Oxygen is carried by haemoglobin as it has a high affinity for oxygen.
Statement 2: Cilia in the upper respiratory tract assists in the removal of microorganisms, dust and other harmful particles present in the inhaled air.
Statement 3: Use of tobacco affects only the lungs.
Statement 4: Due to smoking, the surface area available for gaseous exchange increases.
Statement 2: Cilia in the upper respiratory tract assists in the removal of microorganisms, dust and other harmful particles present in the inhaled air.
Statement 3: Use of tobacco affects only the lungs.
Statement 4: Due to smoking, the surface area available for gaseous exchange increases.