Viruses

Most of us at one time or an different have had colds or the grippe. The symptoms; fever, congestion, coughing, and sore throat, easily ashes through offices, schools and homes, and no matter where in the world you live. Colds and the influenza ar hastend by viruses. Viruses are responsible for many new(prenominal) serious, many times deadly, diseases including; AIDS, ebola hemorrhagic fever, and hepatitis. A virus is a tiny particle. Virus particles are about one-millionth of an skirt large. Viruses are about a thousand times minute than bacteria, and bacteria are smaller than most human cells. Viruses are so small that most brush asidenot even be seen with a light microscope, instead an electron microscope must be used. A virus particle consists of; nucleic acid, coat of protein, and lipid membrane. Viruses take leave wide in their shape and complexity. Viruses dont mince the chemic machinery needed to enthral out the chemical reactions for life. Instead, viru ses carry completely one or two enzymes that decode their communicable instructions. So a virus must have a phalanx cell in which to live and make more(prenominal) viruses. Viruses can enter the human body through the nose, mouth, or stops in the skin. Once inside, they find a host cell to infect. on the whole viruses follow the same basic stairs called the lytic cycle.

The sequence of events that occurs when you summon lot with the flu or a cold is a good demonstration of how a virus works. First, an infected soulfulness sneezes near you, then you inhale the virus particle and it attaches to cells facing the inside of your nose. The virus then fer! vidnesss the cells lining the nose and cursorily reproduces new viruses. The host cells then break and new viruses send into your bloodstream and lungs. Viruses in the fluid that drips down your throat feeler the cells lining your throat and give you a sore throat. Viruses in your bloodstream then can attack muscle cells and cause you to have muscle aches. Viruses can outlast for a long time outside the body. The way that viruses...If you extremity to get a full essay, order it on our website: OrderCustomPaper.com

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