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A-Level Biology OCR A

Cell Ways Host Viruses Digest Fungi Describe Pathogens

The summary details four ways pathogens damage host tissues: viruses taking over cell metabolism, Protoctista digesting and using cell contents, fungi digesting living cells, and bacteria/fungi producing toxins.

O resumo detalha quatro maneiras pelas quais os patógenos podem danificar os tecidos do hospedeiro: vírus que assumem o metabolismo celular, Protoctista que digerem e usam o conteúdo celular, fungos que digerem células vivas e bactérias/fungos que produzem toxinas.

Front Describe 4 ways in which pathogens can damage host tissue, causing harm.
Back Ways pathogen cause harm:
  • Viruses take over cell metabolism, using it to make new viruses which burst out of cell, destroying it and spreading to other cells
  • Some protoctista take over cell but digest and use cell contents as they reproduce - they dont take over genetic material
  • Fungi digest living cells & destroy them
  • Most bacteria and some fungi can produce toxins that affect host cells/damage them and cause disease

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