BIOL132 Gram- Stain- Positive Bacteria

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Last updated: January 20, 2023

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First submitted	January 19, 2023
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Average score	95.5%
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questions	Answer
what is the name of the gram stain positive bacteria that causes bumble foot in chickens ?	Staphylococcus aureus
what are the two main pathovars for S.aureus ?	MRSA VRSA
S.aureus forms in ....... on the skin of most mamalia	clusters
S.aureus is easily transferred from the mouth/ nose of ..... ..... to Homo sapiens	Canus lupus
what is the name of the gram stain positive bacteria found on roughly 5% of the population (skin flora / rectum/ throat) that forms chains of cocci ?	Streptococcus pyogenes
Spc.pyogenes can cause .... ...... in children after chickenpox and adults after influenza	strep throat
Spc. pyogenes can cause more serious infections in heavily pregnant women this infection is called ........ ............. ....... infection	maternal streptococcus pyogenes
there are many ......... strains of Spc. pyogenes which cause red blood cells to lyse	hemolytic
gram stain positive bacteria ............. ........... is rod shaped an growns below pH 5 (heavily used in dairy industry + making sourdough )	Lactobacillus acidophilus
L.acidophilus ferments sugars via .......... fermentation which oxidises pyruvate to ...... .... NO H2O or CO2 produced	homolactic, lactic acid
L.acidophilus is used as a probiotic to treat ...	IBS

questions	Answer
in spite of its name, ............. ......... is only found in 1% of vaginas	Lactobacillus vaginalis
ferments sugars by heterolactic fermentation, pyruvate is oxidised to make lactic acid AND ... and ...	H2O CO2
Lactobacillus vaccination used in some parts of ...... to treat persistent ...... infections	europe, vaginal
this large rod shaped gram stain positive bacteria causes a horrible infection in the lungs (and sometimes spine and brain) of practically all mammals	Mycobacterium tuberculosis
what element of M.tuberculosis cell walls means that it can be identified when washed with alcohol with acid ( everything but M.tuberculosis loses its colour)	mycolic acid
M.tuberculosis resists the attack by phagosomes and results in .......... in the lungs	granulomas
similar species to M.tuberculosis cause ......	leprosy
this gram stain positive bacteria can resist up to 5,000 Gy at a time	deinococcus radiodurans
outside of cell wall of D.radiodurans is coated with .... forming a radiation shield	MNO2
D.radiodurans is found in ....... a cluster of .... cells	tetrads, four
to give D. radiodurans structural rigidity their chromosomes are supercoiled into tight .......	toroids