BIOD 171 M5: MODULE 5 EXAM - REQUIRES RESPONDUS LOCKDOWN
BROWSER + WEBCAM| PORTAGE LEARNING
Due No due date Points 100 Questions 29 Time Limit 60 Minutes
Requires Respondus LockDown Browser
Attempt History
Attempt Time Score
LATEST Attempt 1 54 minutes 95 out of 100
Score for this quiz: 95 out of 100
Submitted Jun 8 at 9:32pm
This attempt took 54 minutes.
Question 1 pts
The concept of treating all samples, whether known or unknown, as
potentially hazardous (or pathogenic) materials is known as .
Your Answer:
Universal precautions
Universal precautions
Question 2 pts
List at least 3 observations a researcher would be sure to note while
assessing an unknown microbial sample.
1/16
,Your Answer:
Size and Shape
The presence of any chemical reaction
Any noticeable motility
A lab researcher would be certain to note:
1. Size and shape
2. Any observable motility
3. Gram status (positive or negative)
4. The presence of any chemical reactions
5. Changes in color localized to the organism or the
surrounding media
6. Capture (or draw) images of any of the characteristics
described above
Question 3 pts
While observing an unknown sample of limited amounts, a researcher
must determine the following observations: (1) the presence of any
motility and (2) its Gram status using the same sample—the liquid sample
cannot be divided. Which would you determine first and why?
Your Answer:
Determining the presence of motility would be my first step, before
determining its Gram status. This is because motility requires the mount
to be wet, while Gram status requires the sample to be heat fixing. If one
choses to begin with the Gram status, the process would destroy the
organism, therefore ruining any chances of accurately determining the
motility.
2/16
, You Bmust Bdetermine Bmotility Bbefore Bdetermining Bthe BGram
Bstatus. BMotility Brequires Ba Bwet Bmount, Bwhile BGram Bstaining
Brequires Bheat Bfixing Bthe Bsample. BIf Bone Bwere Bto Bbegin Bwith
Bthe BGram Bstain Bthe Bheat Bfixation Bprocess Bwould Bkill Bthe
Borganism, Bmaking Bany Bobservations Bregarding Bmotility
Bimpossible. BThe Bcorrect Bapproach Bwould Bbe Bto Bplace Bthe
Bliquid Bculture Bon Ba Bglass Bslide Band Bdetermine Bits Bmotility
Bstatus. BNext, Bthe Bsame Bliquid Bculture Bcan Bbe Bheat Bfixed Band
BGram Bstained.
Question 4 B
3/3
B B
pts
A Bfacultative Banaerobe Bis Ba Bmicroorganism Bcapable Bof Bgrowth Bunder
Bwhat
conditions?
Your BAnswer:
It Bis Bcapable Bof Bgrowth Bboth Bin Bthe Bpresence Bor Babsence Bof
oxygen
A Bfacultative Banaerobe Bis Bcapable Bof Bgrowth Bunder
Baerobic
(with oxygen) and anaerobic (without oxygen)
Question 5 B
B B
pts
As BStreptococcus Bis Bcatalase Bnegative Bwould Bit Bthrive Bor Bdie Bin
Bthe
presence of peroxides? Why?
Your BAnswer:
3/16
BROWSER + WEBCAM| PORTAGE LEARNING
Due No due date Points 100 Questions 29 Time Limit 60 Minutes
Requires Respondus LockDown Browser
Attempt History
Attempt Time Score
LATEST Attempt 1 54 minutes 95 out of 100
Score for this quiz: 95 out of 100
Submitted Jun 8 at 9:32pm
This attempt took 54 minutes.
Question 1 pts
The concept of treating all samples, whether known or unknown, as
potentially hazardous (or pathogenic) materials is known as .
Your Answer:
Universal precautions
Universal precautions
Question 2 pts
List at least 3 observations a researcher would be sure to note while
assessing an unknown microbial sample.
1/16
,Your Answer:
Size and Shape
The presence of any chemical reaction
Any noticeable motility
A lab researcher would be certain to note:
1. Size and shape
2. Any observable motility
3. Gram status (positive or negative)
4. The presence of any chemical reactions
5. Changes in color localized to the organism or the
surrounding media
6. Capture (or draw) images of any of the characteristics
described above
Question 3 pts
While observing an unknown sample of limited amounts, a researcher
must determine the following observations: (1) the presence of any
motility and (2) its Gram status using the same sample—the liquid sample
cannot be divided. Which would you determine first and why?
Your Answer:
Determining the presence of motility would be my first step, before
determining its Gram status. This is because motility requires the mount
to be wet, while Gram status requires the sample to be heat fixing. If one
choses to begin with the Gram status, the process would destroy the
organism, therefore ruining any chances of accurately determining the
motility.
2/16
, You Bmust Bdetermine Bmotility Bbefore Bdetermining Bthe BGram
Bstatus. BMotility Brequires Ba Bwet Bmount, Bwhile BGram Bstaining
Brequires Bheat Bfixing Bthe Bsample. BIf Bone Bwere Bto Bbegin Bwith
Bthe BGram Bstain Bthe Bheat Bfixation Bprocess Bwould Bkill Bthe
Borganism, Bmaking Bany Bobservations Bregarding Bmotility
Bimpossible. BThe Bcorrect Bapproach Bwould Bbe Bto Bplace Bthe
Bliquid Bculture Bon Ba Bglass Bslide Band Bdetermine Bits Bmotility
Bstatus. BNext, Bthe Bsame Bliquid Bculture Bcan Bbe Bheat Bfixed Band
BGram Bstained.
Question 4 B
3/3
B B
pts
A Bfacultative Banaerobe Bis Ba Bmicroorganism Bcapable Bof Bgrowth Bunder
Bwhat
conditions?
Your BAnswer:
It Bis Bcapable Bof Bgrowth Bboth Bin Bthe Bpresence Bor Babsence Bof
oxygen
A Bfacultative Banaerobe Bis Bcapable Bof Bgrowth Bunder
Baerobic
(with oxygen) and anaerobic (without oxygen)
Question 5 B
B B
pts
As BStreptococcus Bis Bcatalase Bnegative Bwould Bit Bthrive Bor Bdie Bin
Bthe
presence of peroxides? Why?
Your BAnswer:
3/16
