Edexcel IGCSE Biology 1.4 pathogens

Practise pathogens by comparing viruses with cells, classifying pathogen groups and applying disease transmission evidence.

Exam points

Compare viruses with Amoeba or cells using nucleus, cytoplasm, membrane and protein coat evidence.
Classify bacteria, fungi, protoctists or viruses as pathogen groups from statements or cases.
Use disease contexts to suggest how ticks or other vectors pass pathogens between organisms.

[Maximum number: 1]

Yeast cells can be genetically modified to produce the proteins found on the outside of viruses.

Give a reason why viruses are not considered to be living organisms.

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