This revision resource includes exam questions, understanding checks and quiz competitions, all of which have been designed with the aim of motivating and engaging the students whilst they assess their understanding of the content found in topic 1.2 (Respiration and the respiratory system in humans) of the WJEC GCSE Biology specification.
The range of activities have been designed to cover as much of the content as possible but the following sub-topics have been given particular attention:
- The need and purpose of the respiratory system
- The function of the mucus and cilia in the trachea and the effect of smoking on these structures
- The structure of the alveolus and its blood supply
- The mechanisms of inspiration and expiration
- The process of aerobic respiration and the release of energy in the form of ATP
- Anaerobic respiration and the production of lactic acid
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