UAMS Clinical & Laboratory Microbiology Exam 1 : Bacterial Morphologies
(Coccus, Bacillus, Coccobacillus, Vibrio, Spirillum, Spirochete, Fusiform,
Pleomorphic, Filamentous), Arrangements (Diplococcus, Staphylococci,
Streptococci, Sarcina, Tetrad), Growth Media (Nutrient, Enriched, Selective,
Differential, Enrichment Broth), Oxygen Preferences (Microaerophilic,
Capnophilic, Humidophilic), Sterilization Methods (Autoclave, Dry Heat,
Filtration, Irradiation, Incineration, Intermittent Boiling), Gram-Positive & Gram-
Negative Bacteria, Catalase & Coagulase Reactions, Staphylococcus aureus &
Epidermidis, Streptococcus Groups A-G, Enterococcus, Viridans, Strep
Pneumoniae, Corynebacterium diphtheriae, Listeria monocytogenes, Bacillus
anthracis & cereus, Erysipelothrix, Lactobacillus, Opportunistic vs True
Pathogens, Exotoxins & Endotoxins, Virulence Factors, Latex Agglutination,
Mannitol Salt & CHROMagar, Novobiocin & Ornithine Decarboxylase Tests, PYR,
CAMP, Hippurate, Optochin, Bile Solubility, 6.5% Salt Tolerance, Quellung
Reaction, Toxin-Mediated Diseases (Necrotizing Fasciitis, Toxic Shock, Gas
Gangrene) Exam Questions Verified and Provided with Complete A+ Graded
Rationales Latest Updated 2026
Name the different organism morphologies
Coccus
Coccobacillus
Vibrio
,Bacillus
Spirillum
Spirochete
Name the bacterial arrangements
Coccus
diplococcus
staphylococci
streptococci
sarcina
tetrad
Describe a Filamentous Rod
A long string of bacillus bacteria
Describe a Fusiform Rod
Bacteria that is pointed on the ends
Describe Pleomorphic Rods
Different lengths and shapes of the same bacteria
, What is the melting and liquid temperatures of agar?
Polysaccharide melts at 100C and stays liquid until 45-50C.
Nutrient Agar
The most basic growth media for bacteria. Examples: TSA and Nutrient Agars
Enriched Media
Supplemented with various substances to encourage growth of fastidious organisms. Examples:
BAP and Chocolate.
Enrichment Broths
Enhance the growth of specific MOs while inhibiting the growth of others. Examples: GN,
Selenite, LIM and Trans-Vag broths.
Nonselective Media
No antimicrobial substances and allows growth of most organisms. Examples: BAP and
Chocolate.
Selective Media
Contains antimicrobial substances which allows the growth of specific bacteria while inhibiting
the growth of others. Examples: PEA, CNA, MAC, EMB
(Coccus, Bacillus, Coccobacillus, Vibrio, Spirillum, Spirochete, Fusiform,
Pleomorphic, Filamentous), Arrangements (Diplococcus, Staphylococci,
Streptococci, Sarcina, Tetrad), Growth Media (Nutrient, Enriched, Selective,
Differential, Enrichment Broth), Oxygen Preferences (Microaerophilic,
Capnophilic, Humidophilic), Sterilization Methods (Autoclave, Dry Heat,
Filtration, Irradiation, Incineration, Intermittent Boiling), Gram-Positive & Gram-
Negative Bacteria, Catalase & Coagulase Reactions, Staphylococcus aureus &
Epidermidis, Streptococcus Groups A-G, Enterococcus, Viridans, Strep
Pneumoniae, Corynebacterium diphtheriae, Listeria monocytogenes, Bacillus
anthracis & cereus, Erysipelothrix, Lactobacillus, Opportunistic vs True
Pathogens, Exotoxins & Endotoxins, Virulence Factors, Latex Agglutination,
Mannitol Salt & CHROMagar, Novobiocin & Ornithine Decarboxylase Tests, PYR,
CAMP, Hippurate, Optochin, Bile Solubility, 6.5% Salt Tolerance, Quellung
Reaction, Toxin-Mediated Diseases (Necrotizing Fasciitis, Toxic Shock, Gas
Gangrene) Exam Questions Verified and Provided with Complete A+ Graded
Rationales Latest Updated 2026
Name the different organism morphologies
Coccus
Coccobacillus
Vibrio
,Bacillus
Spirillum
Spirochete
Name the bacterial arrangements
Coccus
diplococcus
staphylococci
streptococci
sarcina
tetrad
Describe a Filamentous Rod
A long string of bacillus bacteria
Describe a Fusiform Rod
Bacteria that is pointed on the ends
Describe Pleomorphic Rods
Different lengths and shapes of the same bacteria
, What is the melting and liquid temperatures of agar?
Polysaccharide melts at 100C and stays liquid until 45-50C.
Nutrient Agar
The most basic growth media for bacteria. Examples: TSA and Nutrient Agars
Enriched Media
Supplemented with various substances to encourage growth of fastidious organisms. Examples:
BAP and Chocolate.
Enrichment Broths
Enhance the growth of specific MOs while inhibiting the growth of others. Examples: GN,
Selenite, LIM and Trans-Vag broths.
Nonselective Media
No antimicrobial substances and allows growth of most organisms. Examples: BAP and
Chocolate.
Selective Media
Contains antimicrobial substances which allows the growth of specific bacteria while inhibiting
the growth of others. Examples: PEA, CNA, MAC, EMB
