pptx, 2.16 MB
pptx, 2.16 MB
docx, 13.69 KB
docx, 13.69 KB
docx, 14.07 KB
docx, 14.07 KB
pptx, 43.3 KB
pptx, 43.3 KB
pptx, 45.14 KB
pptx, 45.14 KB
docx, 14.94 KB
docx, 14.94 KB

This fully-resourced lesson describes the role of barriers in protecting the body from infection by pathogens when entering the body by the major routes. The engaging and detailed PowerPoint and accompanying resources have been designed to cover points 6.11 (i) & (ii) of the Pearson Edexcel A-level Biology A (Salters Nuffield) specification and describe the following barriers:

  • skin
  • key steps of the blood clotting process
  • mucous membranes
  • stomach acid
  • vaginal and skin flora

There are clear links to topics 1, 2 and 3 in each of these barriers, so time is taken to consider these during the descriptions. For example, the presence of keratin in the cytoplasm of the skin cells allows the student knowledge of the properties of this fibrous protein to be checked. Other topics that are revisited during this lesson include blood clotting, protein structure, key terminology and the epithelium that lines the different parts of the airways.

All of the exam-style questions and tasks have mark schemes that are embedded in the PowerPoint and a number of them have been differentiated to allow students of differing abilities to access the work.

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A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

Bundle

Topic 6: Immunity, infection and forensics (Edexcel A-level Biology A)

This lesson bundle contains 9 lesson PowerPoints and their accompanying resources which have been intricately planned to deliver the detailed content of topic 6 of the Pearson Edexcel A-level Biology A (Salters Nuffield) specification and to make links to the 5 previously covered topics. In addition to the detailed content, each lesson contains exam-style questions with mark schemes embedded into the PowerPoint, differentiated tasks, guided discussion points and quick quiz competitions to introduce key terms and values in a fun and memorable way. The following specification points are covered by the lessons in this bundle: * DNA can be amplified using the PCR * Comparing the structure of bacteria and viruses * Understand how Mycobacterium tuberculosis and human immunodeficiency virus infact human cells * The non-specific responses of the body to infection * The roles of antigens and antibodies in the body's immune response * The differences in the roles of the B and T cells in the body's immune response * Understand how one gene can give rise to more than one protein * The development of immunity * The major routes that pathogens may take when entering the body * The role of barriers in protecting the body from infection * The difference between bacteriostatic and bactericidal antibiotics If you would like to sample the quality of the lessons in this bundle, then download the immune response and post-transcriptional changes lessons as these have been uploaded for free

£14.00

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