Respiratory system: WAEC Biology Past Questions and Answers

What the WAEC syllabus covers in Respiratory system

Our summary: Respiratory surfaces such as skin, gills and lungs, and how fish, toads, mammals and plants exchange gases.

• Body surface: cutaneous, gills and lungs (Characteristics of respiratory surfaces in these systems should be studied. Respiratory organs of insects should be mentioned. Candidates should be able to observe, draw and label the respiratory organs of a bony fish (e.g. Tilapia) and a small mammal (e.g. rat).)
• Mechanisms of gaseous exchange in fish, toad, mammals and plants (Respiratory movements in these animals should be mentioned. The mechanisms of opening and closing of stomata should be mentioned.)

Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)).