1|Page
MICROBIOLOGY LAB FINAL EXAM VERSION 1 EXAM LATEST 2026-2027 ACTUAL
EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR VERIFIED||
||BRANDNEW!!!||
A bacterium that grows on blood agar and is not surrounded by a
zone of clearing is said to be:
Question options:
A)
α-hemolytic
B)
β-hemolytic
C)
γ-hemolytic - ANSWER-γ-hemolytic
MacConkey agar is specially designed to find:
Question options:
A)
Staphylococci that live on human skin and in our nasal passages.
B)
,2|Page
Fastidious bacteria that only grow when they are provided special
nutrients from blood.
C)
Enteric bacteria that live in the intestines and feces of humans
and other animals. - ANSWER-Enteric bacteria that live in the
intestines and feces of humans and other animals.
Why should you always weigh the agar out separately from the
other media ingredients?
Question options:
A)
Because the agar is temperature sensitive and cannot be
sterilized in the autoclave. We must add it next lab period after
our media has been sterilized.
B)
Because agar is the most important ingredient. If you forget to
add it, the bacteria won't have anything to eat.
C)
Because agar is completely insoluble in water. You cannot
dissolve it along with the rest of the media ingredients, no matter
,3|Page
how long you stir. - ANSWER-Because agar is completely
insoluble in water. You cannot dissolve it along with the rest of the
media ingredients, no matter how long you stir.
According to the lab standard operating procedures, you must
wash your hands with soap and water for at least _________
before leaving the lab.
A)
2 seconds
B)
5 seconds
C)
15 seconds
D)
30 seconds
E)
1 minute - ANSWER-C)
15 seconds
, 4|Page
Which of the following statements does NOT correctly describe a
rule that you must follow in the microbiology lab?
A)
There is no eating or drinking allowed in the microbiology lab.
B)
If you spill a bacterial culture on your lab coat, you must report it
to your demonstrator.
C)
You must disinfect your workbench before and after each
microbiology lab.
D)
No personal effects are allowed in the lab. You must find
somewhere else to leave your winter jacket, textbooks, backpacks
etc. while you attend the lab.
E)
None of the above. (All of the above statements correctly describe
a rule that must be followed in the microbiology lab) - ANSWER-
E)
None of the above. (All of the above statements correctly describe
a rule that must be followed in the microbiology lab)
MICROBIOLOGY LAB FINAL EXAM VERSION 1 EXAM LATEST 2026-2027 ACTUAL
EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR VERIFIED||
||BRANDNEW!!!||
A bacterium that grows on blood agar and is not surrounded by a
zone of clearing is said to be:
Question options:
A)
α-hemolytic
B)
β-hemolytic
C)
γ-hemolytic - ANSWER-γ-hemolytic
MacConkey agar is specially designed to find:
Question options:
A)
Staphylococci that live on human skin and in our nasal passages.
B)
,2|Page
Fastidious bacteria that only grow when they are provided special
nutrients from blood.
C)
Enteric bacteria that live in the intestines and feces of humans
and other animals. - ANSWER-Enteric bacteria that live in the
intestines and feces of humans and other animals.
Why should you always weigh the agar out separately from the
other media ingredients?
Question options:
A)
Because the agar is temperature sensitive and cannot be
sterilized in the autoclave. We must add it next lab period after
our media has been sterilized.
B)
Because agar is the most important ingredient. If you forget to
add it, the bacteria won't have anything to eat.
C)
Because agar is completely insoluble in water. You cannot
dissolve it along with the rest of the media ingredients, no matter
,3|Page
how long you stir. - ANSWER-Because agar is completely
insoluble in water. You cannot dissolve it along with the rest of the
media ingredients, no matter how long you stir.
According to the lab standard operating procedures, you must
wash your hands with soap and water for at least _________
before leaving the lab.
A)
2 seconds
B)
5 seconds
C)
15 seconds
D)
30 seconds
E)
1 minute - ANSWER-C)
15 seconds
, 4|Page
Which of the following statements does NOT correctly describe a
rule that you must follow in the microbiology lab?
A)
There is no eating or drinking allowed in the microbiology lab.
B)
If you spill a bacterial culture on your lab coat, you must report it
to your demonstrator.
C)
You must disinfect your workbench before and after each
microbiology lab.
D)
No personal effects are allowed in the lab. You must find
somewhere else to leave your winter jacket, textbooks, backpacks
etc. while you attend the lab.
E)
None of the above. (All of the above statements correctly describe
a rule that must be followed in the microbiology lab) - ANSWER-
E)
None of the above. (All of the above statements correctly describe
a rule that must be followed in the microbiology lab)
