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What do fimbriae do?
they allow cells to adhere to surface and contribute to pathogenicity
What is a spore stain?
stains internal structures of some bacteria, it colors endospores green and colors the rest of the cell red (pink)
What are the major groups of organisms?
Prokaryotes, Eukaryotes, and Acellular microbes
What are fats composed of?
a glycerol backbone and one or more fatty acids
What is an electron microscope?
a microscope that allows us to see up to 500,000x to view viruses and internal structures
What is the difference between gram positive and negative stains?
gram positive is when bacteria have a thick cell wall and gram negative is when bacteria have a thin cell wall
What is the difference between a cation and anion?
A cation is when an atom loses an electron and an anion is when an atom gains an electron
What did Paul Ehlrich do?
found that certain dyes stained bacteria differently than animal cells. a chemical might exist that could harm disease-causing microbes.
What are hydrogen bonds?
covalently bonded molecules that display polarity (hydrogen bonded to oxygen)
What are organic molecules?
molecules that contain both carbon and hydrogen
What is a light microscope?
any kind of microscope that uses visible light to observe a specimen
What are the two nucleic acids?
DNA and RNA
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