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→About Viruses
===About Viruses===
: '''Viruses''' are made from a strand of [[DNA]] or [[RNA]] and a [[Protein Sheath|protein sheath]].
: '''Viruses''' cannot reproduce outside a [[host]] [[Cell (Biology)|cell]] so they are not considered to be [[alive]].
: When a '''virus''' comes in contact with a target [[Cell (Biology)|cell]] it attaches itself to the [[Cell Membrane|cell membrane]] and then injects its [[DNA]] (or [[RNA]]) into the [[Cell (Biology)|cell]]. Once this is done the [[DNA]] causes the [[Cell (Biology)|cell]] to start making copies of the [[virus]]. When millions of copies have been made they burst out, killing the [[Cell (Biology)|cell]]. These millions of [[virus]]es can then go on to [[infection|infect]] other [[Cell (Biology)|cells]].
:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Viruses; life cycle, pages 106-107, GCSE Biology, Pearson, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Viruses; vectors for, pages 195, GCSE Biology, Pearson, Edexcel '']
====OCR====
:[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Viruses, pages 24-25, 209, 211, 215-216, 221, Gateway GCSE Biology, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Viruses, pages 67, 68, 72, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
:[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Viruses, pages 91, 92, Gateway GCSE Biology; The Revision Guide, CGP, OCR '']
==Beyond the Curriculum==
{{#ev:youtube|https://www.youtube.com/watch?v=oqGuJhOeMek}}