Explain how the body’s natural defence mechanisms

Task 1

In the form of separate written responses, answer the following questions: a)

Explain how the body’s natural defence mechanisms prevent pathogenic organisms gaining entry to the
If the above mechanisms are breached, explain how the next level of defence prevents these pathogens spreading into the body
If pathogens invade the blood and tissues of the body, what are the roles of the cells involved in the immune response which fight infections?
800 words (A.C. 6.1).

Highlight some of the specific features of cells within the primary and secondary defence mechanisms which enable them to carry out their roles, then explain the roles of the cell organelles using the production of antibodies as an 300 words (A.C. 1.1)
Using the immune system and blood cells as an example, explain the benefits of cells combining to form tissues. 200 words (A.C. 2)

Task 2

Produce an information booklet covering no more than 2 sides of A4, informing the reader about auto-immune diseases and allergies.

Within your work you should:

Describe a specific allergy and a specific auto-immune disease highlighting their causes and effects, and give suggestions as to how they can be
(A.C. 6.2)

Your booklet should be aimed at the general public, such as in a GP surgery, so the information should be presented clearly, in an attractive manner, and use accessible language, with any terminology being explained.

Font size should be no smaller than 12 to ensure it can be read clearly

All sources must be referenced within the text and a full reference list for both parts of the assignment must be submitted using Harvard referencing.


Approximately 250 words