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2.2.3 Blood
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Blood Is a Transport Tissue

Blood Is a Transport Tissue

Comparison of plasma, red blood cells, a nucleated white blood cell and tiny platelets, with their functions and approximate proportions labelled

Blood is a tissue because it contains cells and cell fragments working together, even though it is liquid. It transports oxygen, dissolved food, wastes, hormones and heat around the body.

2.2.3 Blood Lesson

  1. GCSE
  2. /Biology
  3. /2.2.3 Blood

Step-by-step lessons covering AQA GCSE Biology 2.2.3 Blood for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Start with the foundational topics and build up to the higher-tier material.