Biology A-Level
Primary non-specific defences
What Primary non-specific defences means in Biology A-Level, as defined for OCR.
Definition of Primary non-specific defences
Check what you remember
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Reference: OCR
Physical, chemical and mechanical barriers that prevent pathogen entry and act immediately without distinguishing between different pathogens.
Topics that use Primary non-specific defences
Related terms
- active immunity
- Active immunity and memory cells
- agglutination
- Animal and recombinant sources
- Animal communicable diseases
- Antibody concentration
- Antibody function in immune defence
- Antibody specificity
Using Primary non-specific defences in the exam
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