Microm 443 - Study guides, Class notes & Summaries

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 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 2024/2025 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 Final Practical Question and answers correctly solved 2024/2025Purpose of blood agar? - correct answer Detection hemolysis Chocolate agar - correct answer -Has NAD+ (factor V) added back to medium -Routinely used to grow Neisseria gonorrhea and Haemophius species Size of... Protozoa Yeast Bacteria Virus - correct answer 20-100 um 4-10 um 1um 0.1 Width of the pointer under .... 10X ob 40X ob 100X ob - correct a