Bio 2010 - Microbiology » Summer 2021 » Pour Plate Technique (B)

Need help with your exam preparation?

Existing Quiz Clients Login here
Question #1
Suppose you obtained your tube with melted agar, brought it back to your desk as a melted liquid, and subsequently forgot about the tube. When you remember, you look and discover the agar in the tube has solidified. Which of the following BEST describes why the agar changed from liquid to solid?
A.   more than one of the above is correct
B.   your lab partner switched out the tubes
C.   It was old agar and it did not perform as expected
D.   the technician did not turn the water bath on
E.   the agar temperature dropped from 50°C to 40°C (or below)
F.   none of the above is correct
Question #2
Suppose you obtained your tube with melted agar, brought it back to your desk, and subsequently forgot about the tube. When you remember, you look and discover the agar in the tube has solidified. Your lab partner says, just put it in a beaker of hot water, it will melt again. You try this with no success. The agar did not melt. Which of the following best explains why the agar did not melt?
A.   the water temperature was not hot enough
B.   more than one of the above is correct
C.   the water temperature was not cool enough
D.   cooling the agar it destroyed it
E.   agar cannot be re-melted
F.   none of the above is correct
Question #3
Which of the following is agar's melting temperature?
A.   100°C
B.   45°C
C.   50°C
D.   40°C
E.   none of the above is correct
Question #4
Which of the following is agar's holding temperature?
A.   40°C
B.   100°C
C.   50°C
D.   45°C
E.   none of the above is correct
Question #5
Which of the best describes the purpose of the Pour Plate technique?
A.   to pour melted agar onto the bottom wide-Petri dish wall
B.   to pour melted agar into slanted test tubes
C.   to pour melted agar onto the top short-Petri dish wall
D.   to pour melted agar onto microscope slides

Need help with your exam preparation?

Existing Quiz Clients Login here