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Viruses By Luke Eddy and Tod Holberton. Polio Virus. Influenza (flu) virus. Quick Facts. Viruses are not living things Viruses don’t have their own kingdom Viruses kill their host cells There are over 800 viruses known to man Virus’ are named by the disease they cause
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VirusesBy Luke Eddy and Tod Holberton Polio Virus Influenza (flu) virus
Quick Facts • Viruses are not living things • Viruses don’t have their own kingdom • Viruses kill their host cells • There are over 800 viruses known to man • Virus’ are named by the disease they cause • Many famous viruses are HIV, Influenza, and E. coli T4 Virus
Replication • The Virus needs a host cell to replicate and exist • There are two different cycles, the Lytic Cell and Lysogenic Cell • The five steps are absorption, entry, replication, assembly, and release Steps of Replication
Structure • Has an inner core of nucleic acid containing an DNA or RNA (their genetic material) • Has an outer coat of protein called a capsid • Some viruses have an additional layer surrounding the capsids called an envelope • The arrangement of the proteins in the capsids determines the virus’ shape
Feeding and Obtaining Energy • Viruses do not feed • Viruses do not convert energy • Viruses operate by reacting to elements T Bacteriophage virus Norwalk-like Virus