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Bacteria & Viruses

diseases caused by it

TermDefinition
pathogens disease-causing agents
True of False: Only a few bacteria and viruses cause disease, even though they are found everywhere True
Who was the first person to show condignly that bacteria cause disease Louis Pasteur , a french chemist
Two Ways bacteria cause disease: -damage the cells by breaking down the cells for food -releasing toxins that travel throughout the body interfering with the normal activities of the host. (DISRUPTING HOMEOSTASIS)
How are many diseases prevented? vaccines
What do vaccines prompt the body to do? make antibodies
antibiotics compounds that block the growth and reproduction of bacteria
Antibiotics treat what? bacterial infections
What are 3 ways to control bacterial growth? sterilization, disinfections, and food processing
sterilization destroys all bacteria by subjecting them to great HEAT
disinfectants chemical solutions that kill pathogenic bacteria
food storage and processing storage in a refrigerator slows the growth of bacteria
Viruses are particles of nucleic acids, proteins, and sometimes lipids
what is a typical virus composed of? a core of DNA or RNA surrounded by a protein coat
What type of microscope is used to see viruses? electron microscope
What is the one thing all viruses have in common? they enter living cells, then use the cell's machinery to produce more viruses
capsid a virus's protein coat
Viruses are highly specific
bacteriophages viruses that infect bacteria
lytic infection a virus enters the cell, makes copies of itself and causes the cell to burst
Created by: theatrelover98
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