Viruses Flashcards
what is a virus
a composed of a capsid and nucleui acids either DNA or RNA
what do viruses need to grow and reproduce
Viruses are types of germs that need to be in living cells to grow and reproduce1.
what are viruses made up of
They are made up of genetic materials like DNA and are protected by a coating of protein
what can viruses survive in
Viruses can survive in plants, animals, and people, and some can also survive on objects
what do viruses cause
Viruses cause diseases in people, other animals, and plants
what do viruses rely on to grow and reproduce
Viruses rely on the cells of other organisms to survive and reproduce, because they can’t capture or store energy themselves.
what do viruses attack
Viruses are like predators with a specific prey they can recognise and attack. Viruses that do not recognise our cells will be harmless, and some others will infect us but will have no consequences for our health.
how do viruses spread
Once a person is infected with a virus, their body becomes a reservoir of virus particles which can be released in bodily fluids – such as by coughing and sneezing – or by shedding skin or in some cases even touching surfaces.
does a virus have a nucleus
no so they are acellular
