GCSE Biology Viral Diseases
Viruses are non-living pathogens that can infect plants and animals. They require a host cell to replicate.
Would you get these right in an exam?
What is Viral Diseases?
"Viral diseases are infections caused by viruses, which are non-living pathogens that replicate inside host cells."
Which pair of symptoms is most associated with measles in GCSE Biology?
Which combination gives recognised routes of HIV transmission?
Why are antibiotics not used to cure measles or flu?
Key Viral Diseases
Measles is spread by inhalation of droplets and causes fever and a skin rash.
HIV is spread by sexual contact or exchange of body fluids and attacks the immune system.
TMV is a plant pathogen that discolours leaves, reducing photosynthesis and growth.
Antiviral drugs are difficult to develop because they must target the virus without damaging the host cell.
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