Catalase Virtual Lab: LVC GE MCB 1000L Microbiology Laboratory ... https://mec.instructure.com/courses/12863/quizzes/172353
Catalase Virtual Lab
• Due May 20 at 5pm
• Points 6
• Questions 6
• Available May 20 at 10:30am - May 20 at 5pm 6 hours and 30 minutes
• Time Limit None
• Allowed Attempts 2
Instructions
Catalase Experiment.
2 attempts
This is not a Quiz
It says "Take Quiz" but it is the only method in this LMS to do a follow up questioning for the following
videos.
You must watch both Catalase videos in the order given to do well on these questions pertaining to
Catalase lab.
1. Theory of Catalase Test
https://www.youtube.com/watch?v=1TSFObauCNU (https://www.youtube.com/watch?
v=1TSFObauCNU)
(https://www.youtube.com/watch?v=1TSFObauCNU)
2. Microbiology - The Catalase Test
https://www.youtube.com/watch?v=SBmL2vg-IN0 (https://www.youtube.com/watch?
v=SBmL2vg-IN0)
1 of 3 05/20/2026, 12:34
,Catalase Virtual Lab: LVC GE MCB 1000L Microbiology Laboratory ... https://mec.instructure.com/courses/12863/quizzes/172353
(https://www.youtube.com/watch?v=SBmL2vg-IN0)
Take the Quiz Again
Attempt History
Attempt Time Score
LATEST Attempt 1 11 minutes 6 out of 6
Correct answers are hidden.
Score for this attempt: 6 out of 6
Submitted May 20 at 12:33pm
This attempt took 11 minutes.
Question 1
pts
1. What do you use for catalase testing?
Select all that applies
Hydrogen Peroxide
alpha Napthanol
Water
blank slide
methyl red
Question 2
pts
2. Catalase is use to detect _______________.
Select all that applies
if an organism is aerobic or anaerobic as aerobes produce catalase enzyme but obligate anaerobes produce very
tiny amount of Catalase
if an organism undergoes butanediol fermentation
2 of 3 05/20/2026, 12:34
,Catalase Virtual Lab: LVC GE MCB 1000L Microbiology Laboratory ... https://mec.instructure.com/courses/12863/quizzes/172353
a bacteria that produces the enzyme catalase from non-catalase producing bacteria
if an organism undergoes mixed acid fermentation
Question 3
pts
3. What are you looking for in a positive Catalase test result?
bubbling
no bubbling
Question 4
pts
4. In the 2nd video titled "Microbiology - The Catalase Test" what was the result for Staphylococcus
aureus?
+ Catalase
- Catalase
Question 5
pts
5. In the 2nd video titled "Microbiology - The Catalase Test", what was the result for Streptococcus?
- Catalase
+ Catalase
Question 6
pts
6. In the 2nd video titled "Microbiology - The Catalase Test", what can be observed and concluded
after adding Hydrogen Peroxide on to the slide with a Streptococcus sample?
Nothing happened (No bubbles) indicating that the bacteria produces the enzyme Catalase
It formed bubbles indicating that the bacteria produces the enzyme Catalase
It formed bubbles indicating that the bacteria does NOT produce the enzyme Catalase
Nothing happened (No bubbles) indicating that the bacteria does NOT produce the enzyme Catalase
Quiz Score: 6 out of 6
3 of 3 05/20/2026, 12:34
,Oxidase Test Virtual Lab: LVC GE MCB 1000L Microbiology Laborat...
Oxidase Test Virtual Lab
• Due Jun 10 at 5pm
• Points 12
• Questions 12
• Available Jun 10 at 11am - Jun 10 at 5pm 6 hours
• Time Limit None
Instructions
Oxidase Test
This is not a Quiz.
It says "Take Quiz" but it is the only method in this LMS to do a follow up questioning for the following
videos.
1 attempt
You must watch the videos on the links below in the order listed and in order to do well on the follow-
up questions.
1.) Microbiology: Oxidase Test
https://www.youtube.com/watch?v=Bv_eNqor_mg (https://www.youtube.com/watch?
v=Bv_eNqor_mg)
(https://www.youtube.com/watch?v=Bv_eNqor_mg)
2.) Oxidase Test:
https://www.youtube.com/watch?v=7Aa1xO2cC1M (https://www.youtube.com/watch?
v=7Aa1xO2cC1M)
(https://www.youtube.com/watch?v=7Aa1xO2cC1M)
1 of 6
06/10/2026, 13:55
Catalase Virtual Lab
• Due May 20 at 5pm
• Points 6
• Questions 6
• Available May 20 at 10:30am - May 20 at 5pm 6 hours and 30 minutes
• Time Limit None
• Allowed Attempts 2
Instructions
Catalase Experiment.
2 attempts
This is not a Quiz
It says "Take Quiz" but it is the only method in this LMS to do a follow up questioning for the following
videos.
You must watch both Catalase videos in the order given to do well on these questions pertaining to
Catalase lab.
1. Theory of Catalase Test
https://www.youtube.com/watch?v=1TSFObauCNU (https://www.youtube.com/watch?
v=1TSFObauCNU)
(https://www.youtube.com/watch?v=1TSFObauCNU)
2. Microbiology - The Catalase Test
https://www.youtube.com/watch?v=SBmL2vg-IN0 (https://www.youtube.com/watch?
v=SBmL2vg-IN0)
1 of 3 05/20/2026, 12:34
,Catalase Virtual Lab: LVC GE MCB 1000L Microbiology Laboratory ... https://mec.instructure.com/courses/12863/quizzes/172353
(https://www.youtube.com/watch?v=SBmL2vg-IN0)
Take the Quiz Again
Attempt History
Attempt Time Score
LATEST Attempt 1 11 minutes 6 out of 6
Correct answers are hidden.
Score for this attempt: 6 out of 6
Submitted May 20 at 12:33pm
This attempt took 11 minutes.
Question 1
pts
1. What do you use for catalase testing?
Select all that applies
Hydrogen Peroxide
alpha Napthanol
Water
blank slide
methyl red
Question 2
pts
2. Catalase is use to detect _______________.
Select all that applies
if an organism is aerobic or anaerobic as aerobes produce catalase enzyme but obligate anaerobes produce very
tiny amount of Catalase
if an organism undergoes butanediol fermentation
2 of 3 05/20/2026, 12:34
,Catalase Virtual Lab: LVC GE MCB 1000L Microbiology Laboratory ... https://mec.instructure.com/courses/12863/quizzes/172353
a bacteria that produces the enzyme catalase from non-catalase producing bacteria
if an organism undergoes mixed acid fermentation
Question 3
pts
3. What are you looking for in a positive Catalase test result?
bubbling
no bubbling
Question 4
pts
4. In the 2nd video titled "Microbiology - The Catalase Test" what was the result for Staphylococcus
aureus?
+ Catalase
- Catalase
Question 5
pts
5. In the 2nd video titled "Microbiology - The Catalase Test", what was the result for Streptococcus?
- Catalase
+ Catalase
Question 6
pts
6. In the 2nd video titled "Microbiology - The Catalase Test", what can be observed and concluded
after adding Hydrogen Peroxide on to the slide with a Streptococcus sample?
Nothing happened (No bubbles) indicating that the bacteria produces the enzyme Catalase
It formed bubbles indicating that the bacteria produces the enzyme Catalase
It formed bubbles indicating that the bacteria does NOT produce the enzyme Catalase
Nothing happened (No bubbles) indicating that the bacteria does NOT produce the enzyme Catalase
Quiz Score: 6 out of 6
3 of 3 05/20/2026, 12:34
,Oxidase Test Virtual Lab: LVC GE MCB 1000L Microbiology Laborat...
Oxidase Test Virtual Lab
• Due Jun 10 at 5pm
• Points 12
• Questions 12
• Available Jun 10 at 11am - Jun 10 at 5pm 6 hours
• Time Limit None
Instructions
Oxidase Test
This is not a Quiz.
It says "Take Quiz" but it is the only method in this LMS to do a follow up questioning for the following
videos.
1 attempt
You must watch the videos on the links below in the order listed and in order to do well on the follow-
up questions.
1.) Microbiology: Oxidase Test
https://www.youtube.com/watch?v=Bv_eNqor_mg (https://www.youtube.com/watch?
v=Bv_eNqor_mg)
(https://www.youtube.com/watch?v=Bv_eNqor_mg)
2.) Oxidase Test:
https://www.youtube.com/watch?v=7Aa1xO2cC1M (https://www.youtube.com/watch?
v=7Aa1xO2cC1M)
(https://www.youtube.com/watch?v=7Aa1xO2cC1M)
1 of 6
06/10/2026, 13:55
