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9.4 Blood

Syllabus
0610–2026–2027
Topic
9.4
Level
—

9.4.1—Components of blood

  • List the components of blood as: red blood cells, white blood cells, platelets and plasma

9.4.2—Red and white blood cells

  • Identify red and white blood cells in photomicrographs and diagrams

9.4.3—Functions of the following components

  • State the functions of the following components of blood: (a) red blood cells in transporting oxygen, including the role of haemoglobin (b) white blood cells in phagocytosis and antibody production (c) platelets in clotting (details are not required) (d) plasma in the transport of blood cells, ions, nutrients, urea, hormones and carbon dioxide

9.4.4—Roles of blood clotting as preventing

  • State the roles of blood clotting as preventing blood loss and the entry of pathogens

9.4.5—Lymphocytes and phagocytes

  • Identify lymphocytes and phagocytes in photomicrographs and diagrams

9.4.6—Functions of: (a) lymphocytes –

  • State the functions of: (a) lymphocytes – antibody production (b) phagocytes – engulfing pathogens by phagocytosis

9.4.7—Process of clotting as the conversion

  • Describe the process of clotting as the conversion of fibrinogen to fibrin to form a mesh

Objective notes

7 learning objectives
ConceptIGCSE Biology