docx, 99.7 KB
docx, 99.7 KB
A starter activity aimed at GCSE biology students, this resource consists of four questions that recap the idea of barriers and phagocytosis as a means of defence against pathogens. The activity has both closed and open questions, with the final question requiring students to describe and explain an illustration of phagocytosis in their own words.

Key words: phagocytosis, barriers, pathogens, defence, immune system

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