Microm 443 Study guides, Class notes & Summaries

MICROM 443 Question and answers rated A+ 2024/2025Genus Staphylococcus - Cells tend to form clusters, may be single, in pairs, or short chains - common skin microbiota - Generally hardy and not nutritionally fastidious - Facultative anaerobes (w/ O2 --> respire; without O2 --> ferment - Catalase positive Genus Streptococcus - Cells tend to form chains - Common oral microbiota - Nutritionally fastidious - Aerotolerent anaerobes/ obligate fermentors, some are caphophiles - Cat...

Microm 443 Questions with complete solution 2024/2025Members of the family Enterobacteriaceae that are Lac+ (TSI = A/A) - correct answer E. coli, Enterobacter, Klebsiella and Citrobacter 50% of the time Members of the family Enterobacteriaceae that are Lac- (TSI = K/A) - correct answer Proteus, Shigella, Salmonella If you get a LIA slant that is R/Y (deamination) what two organisms should you think about? - correct answer Proteus and Providencia Members of the family Enterobact...

MICROM 443 Questions with complete solution 2024/2025 What does a Methylene Blue stain show? What color? - correct answer metachromatic granules (volutin, polyphosphate) red/purple What does an Acid-Fast stain detect? - correct answer Mycobacterium species Why do incubate at 35C? - correct answer medically important bacteria grow at body temperature What is Blood agar? - correct answer rich media w/ red blood cells What is Chocolate agar? - correct answer lysed red blood ...

MICROM 443 FINAL Question and answers already passed 2024/2025Staphylococcus - correct answer - gram + - typically can isolate from skin - cocci in irregular clusters - catalase postive - non fastidious - facultative anaerobes - Can differentiate species by: coagulase test, novobiocin susceptibility, biochemical tests Staphylococcus aureus - correct answer - pathogen/opportunistic - some carry as Normal Microbiota of the nose - infections include: furuncles (boils), carb...

MICROM 443 Question and answers rated A+ 2024/2025Taxonomy Theory and practice of classification of individuals into groups. classification Phylogeny Study of evolution and ancestry of an organism. classification Brainpower Read More Phenotype Morphology, biochemical capabilities; fatty acid (membrane and by-products), mycolic acid analysis. classification Genotype %G+C, DNA: DNA hybridization, sequence and whole genome sequence analysis. classification

Microm 443 Midterm Question and answers correctly solved 2024/2025Staphylococcus aureus - correct answer Gram reaction: Gram positive cocci in clusters, tetrads and pairs Cell morphology: coccus Colony morphology: medium to large, white/creamy -> gold, possibly B-hemolytic Identification: B-hemolytic, catalase positive, most likely novobiocin sensitive, coagulase positive Normal Samples: carried in nose/nasal passage and skin of 10-40% of people Clinical samples: skin/hair follicle in...

Microm 443 Final Exam Study Questions with complete solution 2024/2025The space between two vertical lines is 1 millimeter (mm). How many 1-micron cocci could you line up end to end between the two lines. - correct answer 1000 When observing a wet mount with the 40x objective, you see an organism whose width is approximately the same size as the pointer. The organism is likely a - correct answer yeast If during a gram stain you forgot to counter stain with safranin, what color would ...

Microm 443 Quiz Question and answers rated A+ 2024/2025Anaerobic bacteria: Gram-neg rods - correct answer -Bacteroides fragilis group - cause abscesses and surgical infections (most common anaerobes recovered from clinical specimens; more resistant to penicillin and cephalosporins than other anaerobes; bile resistant) -Prevotella/Porphyromonas group - includes the black pigmented Pr. melaninogenica -Fusobacterium spp. - cause absession, aspiration pneumonia Anaerobic bacteria: Gram-pos r...

MICROM 443 Final Question and answers rated A+ 2024/2025Cryptococcus neoformans organism type - correct answer yeast sputum specimens detect... - correct answer bacterial pneumonia bacterial pneumonia organisms - correct answer Strep. Pneumoniae, Staph. Aureus, H. influenzae, Klebsiella, Pseudomonas aeruginosa (cystic fibrosis), enterics normal microbiota of mouth - correct answer Neisseria, viridans strep, and non-hemolytic strep, less so: H. influenzae, Staph aureus, Candi...

MICROM 443 Quiz 5 Content Question and answers 100% correct 2024/2025What does the LIA test for? ability to deaminate lysine, carboxylate lysine, and/or produce H2S How is an LIA slant set up? The top is AEROBIC and tests for lysine DEAMINATION The bottom is ANAEROBIC and tests for lysine DECARBOXYLATION Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seco