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Chapter 4 micro

Chapter Four Microbiology

QuestionAnswer
Teichoic Acid consists of glycerol, phosphates, and the sugar alcohol ribitol
Cocci in pairs diplococci
Cocci in chains streptococci
rods in chains lactobacillus
cocci in clusters staphylococci
Prokaryote no nucleus. single celled. all bacteria. singular chromosome. no histones. cell wall has peptidoglycan.
Eukaryote nucleus. single or multicellular. paired chromosome. histones. cell wall has cellulose, chitin.
Peptidoglycan aka murein
Peptidoglycan polymer made up of two alternating sugars N-acetlylglucosamine and N-acetylmuramic
Cell walls of gram positive organisms have an additional molecule called techoic acid
Function of Techoic Acid: Attachment sites for bacteriophages, passageway for movement of ions
Outer Membrane found primarily in gram negative bacteria.
Bilayer membrane containing porins and attached to peptidoglycan by an almost continuous layer of small protein molecules with the outer membrane containing antigens and receptors Outer Membrane
Lipopolysaccharide aka endotoxin
part of the outer membrane that can identify gram negative bacteria Lipopolysaccharide
The large surface to volume ratio allows prokaryotes to get nutrients easily to all parts of the cell
Single chromosome prokaryote
membrane bound nucleus eukaryote
endoplasmic reticulum eukaryote
respiratory enzymes in mitochondria eukaryote
mitosis eukaryotes
peptidoglycan in cell wall prokaryote
cilia eukaryote
80S ribosomes eukaryote
chloroplasts eukaryote
Bacteria prokaryote
Members of the Archaea and Bacteria domains are both prokaryotic and have similar structure but differ molecularly. T or F? True
Gram Positive lack outer membrane, lack periplasmic space, lack lipopolysaccharide, have a thick peptidoglycan layer
the association of endotoxin in gram negative bacteria is a result of the presence of lipopolysaccharide
the reason that bacterial cells are more resistant to osmotic shock than eukaryotic cells is their cell wall of peptidoglycan
Created by: warrenbm
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