A Level Biology Revision Lesson 79: B-cells.

Task 1. Check Where this Lesson fits into your Exam Specification!

Task 2. Watch the Revision Notes Lesson in Full.

Download the accompanying A Level Revision Notes (A3 PDF)

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Check Your Spec!

★ AQA A Level Biology Specification Reference: - 3.2.4 Cell recognition and the immune system. Each type of cell has specific molecules on its surface that identify it. These molecules include proteins and enable the immune system to identify: - The role of B cells.


★ CIE A Level Biology Specification Reference: - 11 Immunity: An understanding of the immune system shows how cells and molecules function together to protect the body against infectious diseases and how the body is protected from further infection by the same pathogen. Phagocytosis is a more immediate non-specific part of the immune system, while the actions of lymphocytes provide effective defence against specific pathogens. Candidates will be expected to use the knowledge gained in this section to solve problems in familiar and unfamiliar contexts. Describe the modes of action of B-lymphocytes and T-lymphocytes. Relate the molecular structure of antibodies to their functions. Explain the meaning of the term immune response, making reference to the terms antigen, self and non-self.


★ Edexcel A Level Biology (Biology A – Salters-Nuffield) Specification Reference: - Topic 6: Immunity, Infection and Forensics. 6.7 Understand the non-specific responses of the body to infection, including inflammation, lysozyme action, interferon, and phagocytosis. 6.8 Understand the roles of antigens and antibodies in the body’s immune response. 6.9 Understand the differences between the roles of B cells (B memory and B effector cells) and T cells (T helper, T killer and T memory cells) in the body’s immune response.

★ Edexcel A Level Biology (Biology B) Specification Reference: - Topic 6: Microbiology and Pathogens. 6.2 Bacteria as pathogens i Understand that bacteria can be agents of infection, invading and destroying host tissues and producing toxins. 6.7 Response to infection: ii Understand the development of the humoral immune response, including the role of: Antigen presenting T cells, T helper cells and cytokines. Antibodies. iii Understand the development of the cell-mediated immune response including the role of: Antigen presenting cells T helper cells and T killer cells.


★ OCR A Level Biology (Biology A) Specification Reference: - 4.1 Communicable diseases, disease prevention and the immune system.


★ OCR A Level Biology (Biology B) Specification Reference: - 3.2 Pathogens, immunity and disease control, 3.2.2 The immune system. B cells.


★ WJEC A Level Biology Specification Reference: - Immunology and Disease.

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