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6.3 Monitoring and maintaining health

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Question 30

Different cells and physical structures in the human body are important in defence against disease.

a.

Match each cell or structure (1 to 4) with its correct defence function (A to D).

Cells & Structures:

  1. Phagocytes
  2. B-lymphocytes
  3. Ciliated epithelial cells
  4. Outer layer of skin

Defence Functions:

  • A. Sweep mucus containing trapped microbes away from the lungs
  • B. Act as a tough physical barrier to prevent entry of pathogens
  • C. Engulf and digest foreign pathogens
  • D. Produce specific antibodies to target and destroy pathogens
[4]
b.

Vaccinations are active immunisations used to protect against disease. Complete the sentence about vaccinations below.

"Vaccines contain harmless forms or parts of a pathogen that stimulate white blood cells to produce specific (i) ‾\underline{\quad\quad\quad}​ and establish (ii) ‾\underline{\quad\quad\quad}​ cells to defend the body against future infections."

[2]
Markscheme

6.3 Monitoring and maintaining health Questions

  1. GCSE
  2. /Biology
  3. /6.3 Monitoring and maintaining health

97 exam-style questions on OCR GCSE Biology 6.3 Monitoring and maintaining health, covering 6.3.1 Health and disease, 6.3.2 Interactions between diseases, 6.3.3 Spread of communicable diseases, 6.3.4 Common infections and diseases, 6.3.5 Physical plant defence responses, 6.3.6 Chemical plant defence responses, 6.3.7 Detecting and identifying plant diseases, 6.3.8 White blood cells and platelets, 6.3.9 Non-specific defence systems, 6.3.10 The immune system, 6.3.11 Monoclonal antibodies, 6.3.12 Vaccines and medicines, 6.3.13 Aseptic techniques, 6.3.14 Discovery and development of new medicines, 6.3.15 Causes of non-communicable diseases, 6.3.16 Treatments for cardiovascular disease, 6.3.17 Lifestyle factors and non-communicable diseases, 6.3.18 Cancer, 6.3.19 Stem cells in medicine, 6.3.20 Gene technology in medicine, and 6.3.21 The human genome and medicine. Each one has a worked solution and a mark scheme showing where the marks go.

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