Ciulla Microbiology 2025/2026 Exam
Questions and Correct Answers | New
Update
A test for the hydrolysis of esculin in the presence of bile is especially
useful in identifying species of the genus
A. Abiotrophia
B. Corynebacterium
C. Enterococcus
D. Staphyloccus - 🧠ANSWER ✔✔C. Enterococcus
,And other Group D Streps
The organism associated with a disease characterized by the presence of a
pseudomembrane in the throat and the production of an exotoxin that is
absorbed into the bloodstream with a lethal affect is
A. Arcanobacterium haemolyticum
B. Staphylococcus aureus
C. Streptococcus pyogens
D. Corynebacterium diphtheriae - 🧠ANSWER ✔✔D. Corynebacterium
diphtheriae
Enterotoxin produced by Staphylococcus aureus is responsible for causing
A. Carbuncles
B. Enterocolitis
C. Impetigo
D. Scalded Skin Syndrome - 🧠ANSWER ✔✔B. Enterocolitis
,Abiotrophia, formerly known as nutritionally variant streptococci, will not
grow on routine blood or chocolate agars because they are deficient in
A. Hemin
B. Pyridoxal
C. VItamin B
D. Thiophene-2-carboxylic hydrazide - 🧠ANSWER ✔✔B. Pyridoxal
Exfoliatin produced by Staphylococcus aureus is responsible for causing
A. Enterocolitis
B. Toxic Shock Syndrome
C. Scalded Skin Syndrome
D. Staphylococcal pneumonia - 🧠ANSWER ✔✔C. Scalded Skin Syndrome
Streptococcus pyogens can be preemptively identified using a(n)
A. PYR disk
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, B. ONPG disk
C. SPS disk
D. Optochin disk - 🧠ANSWER ✔✔A. PYR disk
A gram positive coccus that is catalase positive, nonmotile, lysostaphin
resistant, and modified oxidase positive is best identified as a member of
the genus
A. Micrococcus
B. Lactococcus
C. Pediococcus
D. Staphylococcus - 🧠ANSWER ✔✔A. Micrococcus
Nocardia asteroides infections in humans characteristically produce
A. Carbuncles
B. Draining cutaneous sinuses
C. Spetic shock
Questions and Correct Answers | New
Update
A test for the hydrolysis of esculin in the presence of bile is especially
useful in identifying species of the genus
A. Abiotrophia
B. Corynebacterium
C. Enterococcus
D. Staphyloccus - 🧠ANSWER ✔✔C. Enterococcus
,And other Group D Streps
The organism associated with a disease characterized by the presence of a
pseudomembrane in the throat and the production of an exotoxin that is
absorbed into the bloodstream with a lethal affect is
A. Arcanobacterium haemolyticum
B. Staphylococcus aureus
C. Streptococcus pyogens
D. Corynebacterium diphtheriae - 🧠ANSWER ✔✔D. Corynebacterium
diphtheriae
Enterotoxin produced by Staphylococcus aureus is responsible for causing
A. Carbuncles
B. Enterocolitis
C. Impetigo
D. Scalded Skin Syndrome - 🧠ANSWER ✔✔B. Enterocolitis
,Abiotrophia, formerly known as nutritionally variant streptococci, will not
grow on routine blood or chocolate agars because they are deficient in
A. Hemin
B. Pyridoxal
C. VItamin B
D. Thiophene-2-carboxylic hydrazide - 🧠ANSWER ✔✔B. Pyridoxal
Exfoliatin produced by Staphylococcus aureus is responsible for causing
A. Enterocolitis
B. Toxic Shock Syndrome
C. Scalded Skin Syndrome
D. Staphylococcal pneumonia - 🧠ANSWER ✔✔C. Scalded Skin Syndrome
Streptococcus pyogens can be preemptively identified using a(n)
A. PYR disk
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, B. ONPG disk
C. SPS disk
D. Optochin disk - 🧠ANSWER ✔✔A. PYR disk
A gram positive coccus that is catalase positive, nonmotile, lysostaphin
resistant, and modified oxidase positive is best identified as a member of
the genus
A. Micrococcus
B. Lactococcus
C. Pediococcus
D. Staphylococcus - 🧠ANSWER ✔✔A. Micrococcus
Nocardia asteroides infections in humans characteristically produce
A. Carbuncles
B. Draining cutaneous sinuses
C. Spetic shock
