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GCSE Biology - The Circulatory System | The Blood (2026/27 exams)
⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. The Four Main Components of Blood * Red Blood Cells * White Blood Cells * Platelets * Plasma 2. Red Blood Cells (RBCs) * Function in oxygen transport (haemoglobin and oxyhaemoglobin). * Adaptations: No nucleus, biconcave shape. 3. White Blood Cells * Role in ...
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