QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS lOMoARcPSD| 69811638
UAMS MICROBIOLOGY EXAM 1
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS ALREADY
PASSED!!!
Question 1: Which of the following lists represents common bacterial
cell shapes (morphologies)?
A. Coccus, Diplococcus, Staphylococci, Streptococci
B. Coccus, Coccobacillus, Vibrio, Bacillus, Spirillum, Spirochete
C. Filamentous, Fusiform, Sarcina, Tetrad, Cluster
D. Gram-positive, Gram-negative, Acid-fast, Spore-forming
✔✔ Correct Answer: B
Question 2: Which bacterial arrangement describes spherical cells
grouped together in grape-like clusters?
A. Diplococcus
B. Streptococci
C. Staphylococci
D. Tetrad
✔✔ Correct Answer: C
Question 3: How is a "Filamentous Rod" structurally characterized in
microbiology?
A. A rod-shaped bacterium tapered and pointed at both ends
B. A long, thread-like string or chain of bacillus bacteria
C. A spherical bacterium arranged in cubes of eight
D. A variable-length rod exhibiting multiple shapes
✔✔ Correct Answer: B
Describe a Fusiform Rod -ANSWER✔✔Bacteria that is pointed on the
ends
Describe Pleomorphic Rods -ANSWER✔✔Different lengths and shapes
of the same bacteria
What is the melting and liquid temperatures of agar? -
ANSWER✔✔Polysaccharide melts at 100C and stays liquid until 45-50C.
)
, QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS lOMoARcPSD| 69811638
Nutrient Agar -ANSWER✔✔The most basic growth media for bacteria.
Examples: TSA and Nutrient Agars
Enriched Media -ANSWER✔✔Supplemented with various substances to
encourage growth of fastidious organisms. Examples: BAP and Chocolate.
Enrichment Broths -ANSWER✔✔Enhance the growth of specific MOs
while inhibiting the growth of others. Examples: GN, Selenite, LIM and
Trans-Vag broths.
Nonselective Media -ANSWER✔✔No antimicrobial substances and
allows growth of most organisms. Examples: BAP and Chocolate.
Selective Media -ANSWER✔✔Contains antimicrobial substances which
allows the growth of specific bacteria while inhibiting the growth of
others. Examples: PEA, CNA, MAC, EMB
Microaerophilic -ANSWER✔✔Decreased oxygen (5-10% O2). Example:
Campylobacter
Capnophilic -ANSWER✔✔Increased CO2 (5-10% CO2) Example:
Haemophilus influenza.
Humidophilic -ANSWER✔✔Increased humidity (70-80%)
Incinerating -ANSWER✔✔Burns and physically destroys MOs
Intermittent Boiling -ANSWER✔✔Kills all MOs (3-30 minute intervals of
boiling at 100C and cooling kills endospores)
Autoclaving -ANSWER✔✔Steam under pressure (15 psi at 121C for 15
minutes)
)
UAMS MICROBIOLOGY EXAM 1
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS ALREADY
PASSED!!!
Question 1: Which of the following lists represents common bacterial
cell shapes (morphologies)?
A. Coccus, Diplococcus, Staphylococci, Streptococci
B. Coccus, Coccobacillus, Vibrio, Bacillus, Spirillum, Spirochete
C. Filamentous, Fusiform, Sarcina, Tetrad, Cluster
D. Gram-positive, Gram-negative, Acid-fast, Spore-forming
✔✔ Correct Answer: B
Question 2: Which bacterial arrangement describes spherical cells
grouped together in grape-like clusters?
A. Diplococcus
B. Streptococci
C. Staphylococci
D. Tetrad
✔✔ Correct Answer: C
Question 3: How is a "Filamentous Rod" structurally characterized in
microbiology?
A. A rod-shaped bacterium tapered and pointed at both ends
B. A long, thread-like string or chain of bacillus bacteria
C. A spherical bacterium arranged in cubes of eight
D. A variable-length rod exhibiting multiple shapes
✔✔ Correct Answer: B
Describe a Fusiform Rod -ANSWER✔✔Bacteria that is pointed on the
ends
Describe Pleomorphic Rods -ANSWER✔✔Different lengths and shapes
of the same bacteria
What is the melting and liquid temperatures of agar? -
ANSWER✔✔Polysaccharide melts at 100C and stays liquid until 45-50C.
)
, QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS lOMoARcPSD| 69811638
Nutrient Agar -ANSWER✔✔The most basic growth media for bacteria.
Examples: TSA and Nutrient Agars
Enriched Media -ANSWER✔✔Supplemented with various substances to
encourage growth of fastidious organisms. Examples: BAP and Chocolate.
Enrichment Broths -ANSWER✔✔Enhance the growth of specific MOs
while inhibiting the growth of others. Examples: GN, Selenite, LIM and
Trans-Vag broths.
Nonselective Media -ANSWER✔✔No antimicrobial substances and
allows growth of most organisms. Examples: BAP and Chocolate.
Selective Media -ANSWER✔✔Contains antimicrobial substances which
allows the growth of specific bacteria while inhibiting the growth of
others. Examples: PEA, CNA, MAC, EMB
Microaerophilic -ANSWER✔✔Decreased oxygen (5-10% O2). Example:
Campylobacter
Capnophilic -ANSWER✔✔Increased CO2 (5-10% CO2) Example:
Haemophilus influenza.
Humidophilic -ANSWER✔✔Increased humidity (70-80%)
Incinerating -ANSWER✔✔Burns and physically destroys MOs
Intermittent Boiling -ANSWER✔✔Kills all MOs (3-30 minute intervals of
boiling at 100C and cooling kills endospores)
Autoclaving -ANSWER✔✔Steam under pressure (15 psi at 121C for 15
minutes)
)
