6/20/22, 11:45 PM L7: Lab Exam 7: Essential Microbiology with Lab-2021-Dalbey
L7: Lab Exam 7
Due No due date Points 30 Questions 10 Time Limit 60 Minutes
Attempt History
Attempt Time Score
LATEST Attempt 1 21 minutes 30 out of 30
Score for this quiz: 30 out of 30
Submitted Jun 16 at 1:15am
This attempt took 21 minutes.
Question 1 pts
In order to assess a liquid bacterial culture for tryptophan breakdown, ~5
drops of _______ reagent is added.
Your Answer:
Kovac’s
Kovac’s
Question 2 pts
What color would you expect to see on the 4-quadrant enzymatic test
card if a microorganism was unable to breakdown tryptophan?
Your Answer:
This study source was downloaded by 100000847426977 from CourseHero.com on 07-11-2022 03:23:40 GMT -05:00
https://portagelearning.instructure.com/courses/896/quizzes/23177?module_item_id=85844 1/6
https://www.coursehero.com/file/156202354/L7-Lab-Exam-7-Essential-Microbiology-with-Lab-2021-Dalbeypdf/
, 6/20/22, 11:45 PM L7: Lab Exam 7: Essential Microbiology with Lab-2021-Dalbey
Yellow
Yellow. The microorganism would be classified as indole
negative.
Question 3 pts
Name one advantage that the ability to breakdown tryptophan brings to a
microorganism.
Your Answer:
An increased ability to survive harsh environments—often seen
via spore formation.
An increased resistance to drugs/medications OR an
increased ability to survive harsh environments—often seen
via spore formation.
Question 4 pts
An enzymatic test that assesses the ability of a microorganism to produce
hydrogen sulfide gas and/or ferment sugar is known as the __________
test.
Your Answer:
TSI (triple sugar iron) test.
This study source was downloaded by 100000847426977 from CourseHero.com on 07-11-2022 03:23:40 GMT -05:00
https://portagelearning.instructure.com/courses/896/quizzes/23177?module_item_id=85844 2/6
https://www.coursehero.com/file/156202354/L7-Lab-Exam-7-Essential-Microbiology-with-Lab-2021-Dalbeypdf/
L7: Lab Exam 7
Due No due date Points 30 Questions 10 Time Limit 60 Minutes
Attempt History
Attempt Time Score
LATEST Attempt 1 21 minutes 30 out of 30
Score for this quiz: 30 out of 30
Submitted Jun 16 at 1:15am
This attempt took 21 minutes.
Question 1 pts
In order to assess a liquid bacterial culture for tryptophan breakdown, ~5
drops of _______ reagent is added.
Your Answer:
Kovac’s
Kovac’s
Question 2 pts
What color would you expect to see on the 4-quadrant enzymatic test
card if a microorganism was unable to breakdown tryptophan?
Your Answer:
This study source was downloaded by 100000847426977 from CourseHero.com on 07-11-2022 03:23:40 GMT -05:00
https://portagelearning.instructure.com/courses/896/quizzes/23177?module_item_id=85844 1/6
https://www.coursehero.com/file/156202354/L7-Lab-Exam-7-Essential-Microbiology-with-Lab-2021-Dalbeypdf/
, 6/20/22, 11:45 PM L7: Lab Exam 7: Essential Microbiology with Lab-2021-Dalbey
Yellow
Yellow. The microorganism would be classified as indole
negative.
Question 3 pts
Name one advantage that the ability to breakdown tryptophan brings to a
microorganism.
Your Answer:
An increased ability to survive harsh environments—often seen
via spore formation.
An increased resistance to drugs/medications OR an
increased ability to survive harsh environments—often seen
via spore formation.
Question 4 pts
An enzymatic test that assesses the ability of a microorganism to produce
hydrogen sulfide gas and/or ferment sugar is known as the __________
test.
Your Answer:
TSI (triple sugar iron) test.
This study source was downloaded by 100000847426977 from CourseHero.com on 07-11-2022 03:23:40 GMT -05:00
https://portagelearning.instructure.com/courses/896/quizzes/23177?module_item_id=85844 2/6
https://www.coursehero.com/file/156202354/L7-Lab-Exam-7-Essential-Microbiology-with-Lab-2021-Dalbeypdf/
