From chemical energy to heat
From chemical energy to heat
Carbohydrates, lipids and proteins store energy in chemical bonds. Respiration releases this energy through controlled enzyme-catalysed reactions, while burning releases it rapidly as heat and light.
Step-by-step lessons on Edexcel GCSE Biology 1.3.4 Measuring energy in food by calorimetry. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.