SYLLABUS REFERENCE CSEC HSB [B2.1] explain the importance of breathing in humans; [B2.2] relate the structures of the respiratory tract to their functions; [B2.3] describe the breathing mechanism; [B2.6] distinguish between gaseous exchange and breathing; [B2.7] identify characteristics common to gaseous exchange surfaces; [B2.8] differentiate between aerobic and anaerobic respiration; CSEC BIOLOGY [B3.1] describe the process of aerobic respiration; [B3.2] distinguish between aerobic and anaerobic respiration; [B3.3] describe the mechanism of breathing in humans and gaseous exchange in flowering plants; [B3.4] identify characteristics common to gaseous exchange surfaces;