MLT UNIT 7 MICROBIOLOGY QUESTIONS WITH 100% CORRECT ANSWERS [ GRADED A+]

MLT UNIT 7 MICROBIOLOGY QUESTIONS WITH

100% CORRECT ANSWERS [ GRADED A+]




Bacteroides - ✔✔GN coccobacilli or straight bacilli (anaerobic),

encapsulated, growth enhanced by bile, (R) to PCN, normal flora of

colon, common in oral infection


Fusobacterium - ✔✔GN pleomorphic bacilli (anaerobic), (R) to

vancomycin, tapered ends


Clostridium - ✔✔GP bacilli, swollen spores, tennis racquet, spindle

shape (anaerobic),


Peptostreptococcus - ✔✔GP cocci - 30% of anaerobes isolated from

infections(anaerobic)


Veilonella - ✔✔GN cocci - (anaerobic), may flouresce red under long UV

, Proprionibacterium - ✔✔GP bacilli chinese letters, birds of flight

(anaerobic), frequently contaminate blood cultures


Enterobactereciae - ✔✔GNR, non-spore formers, oxidase negative,

ferment glucose, produce gas, reduce nitrites


Enterobactereciae genus - ✔✔Proteus, Providencia, Morganella,

Edwardsiella, Salmonella, Citrobacter, Escheria, Yersinia, Shigella,

Hafnia, Enterobacter, Serratia, Klebsiella


Micrococcaceae - ✔✔GPC Catalase +


Staphylococcus - ✔✔GPC Catalase +, microdase (=)


Streptoccoccus - ✔✔GPC, Catalase (=)


S. pyogenes - ✔✔GPC, beta-strep, +PYR, (S) A-disk, scarlet fever,

necrotizing fasciitis


S. agalactiae - ✔✔GPC, beta/gamma-strep, +CAMP, neonatal meningitis