Avoid the crisis' of viruses!!

Madison Green & Christina Chung

Basic info

Structure: proteins coat (capsid), enzymes, DNA or RNA, and occasionally a lipid membrane (envelope)

What they do to cells: infect cellsand cause dieases in animals, plants, and bacteria, use cells to make more viruses, and change over time (mutate)

How they reproduce: viruses attach to host cells, viruses inject DNA or RNA into cell, virus' genetics material take over cell, host cell makes virus parts, virus parts assemble in cell

Size: Viruses: 20-250 nano-grams Bacteria: about 1,000 nano-grams Animal Cell: 10,000-100,000 nano-grams

Why they are not cells: not made of cells, cannot produce on their own, cannot move, do not go through cellular respiration (do not make ATP), and do not eat

Mumps Virus

The mumps virus, also called parotitis, can cause fever, headache, dry mouth, joint aches, ear pain, and discomfort. Mumps is spread through the exchange of body fluid, especially when someone coughs, sneezes, or talks. While people do die of mumps, one in ten thousand, it is very rare for it to occur. There are less than twenty thousand cases in the United States. To cure the disease, take analgesics, such as ibuprofen and acetaminophen and apply ice or hot packs on swollen areas. To prevent mumps, take two doses of the MMR vaccines before the age of 12.