Biology 1202B Lecture Notes - Lecture 22: Lysogenic Cycle, Galactose, Lytic Cycle
10 May 2016
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Document Summary
One of the deadliest natural disasters in human history. Influenza and other viruses affect people with weaker immune systems. High mortality rates in the youth or the elderly normally weaker immune systems. H1n1 exact same strand caused influenza in 1918. Small infectious agents which replicate inside the living cells of other organisms. Can infect animals, plants, bacteria and archaea. Protein coat surrounding, which holds dna or rna. Dependent on host cells for these functions. No ability to harness and utilize energy from host cell. Only way in which viruses can reproduce is inside another living cell. Coat may be surrounded by envelope from host cell. Acquired as the virus passes through the host cell membrane. Whenever a virus is created, it leaves the cell and it has the ability to pick up the membrane that the virus is leaving from sometimes perfect hiding place . Although it may have a membrane - not a cell.
