This is the method used. 1. Record the breathing rates of 10 male non-smokers at rest. 2. Tell each man to run on a treadmill at the same speed for 8 ...

Summary notes, revision videos and past exam questions by topic for CAIE IGCSE Biology Topic 12 - Respiration.

Respiration worksheets, questions and revision for GCSE Combined Science and Biology. All the revision you need in one place.

Questions and model answers on Respiration for the AQA GCSE Biology syllabus, written by the Biology experts at Save My Exams.

What is cellular respiration? Revise the the difference between aerobic and anaerobic for GCSE Combined Science, AQA.

GCSE BIOLOGY. BREATHING & RESPIRATION. High Demand Questions. QUESTIONSHEET 14. The graph shows the level of lactic acid in the blood before, during and after a ...

Questions and model answers on Respiration for the Edexcel IGCSE Biology syllabus, written by the Biology experts at Save My Exams.

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The questions in this quiz are suitable for GCSE combined science students studying cellular respiration, aerobic and anaerobic respiration, oxygen debt, ...