UTA Micro Lab Practical One Review (Quizzes);
Questions and Answers % Correct
If you are using the 40x objective and have a 10x eyepiece,
what is your total magnification? Correct answer-400x
__________ is the ability to see or distinguish detail or the clarity of the image. Correct
answer-Resolution
What can be done to increase the contrast of a specimen to bright background of a light
microscope? Correct answer-You could stain the specimen.
Based off of your lab activities, what is this image of? Correct answer-bacterial capsule
When using a parfocal lenses, coarse adjustment is typically only done when the specimen is
initially viewed using the ______ objective. Correct answer-4x
Based off of your lab activities, what magnification is this image? Correct answer-100x
What is the purpose of using immersion oil with the 100X objective? Correct answer-To
reduce the scattering or bending of light from the image.
What magnification is this onion root tip image based off of your lab activity? Correct
answer-40x
, UTA Micro Lab Practical One Review (Quizzes);
Questions and Answers % Correct
_________ is a measure of how much the size of the size of the image of the specimen has been
increased. Correct answer-Magnification
It is ok to use oil on the 40x objective to reduce light scattering. T/F Correct answer-False
Which statement below is correct? Correct answer-Allow the loop to cool slightly before
putting it into a culture by waiting a few seconds before inoculating.
Jeffery inoculated a tryptone broth tube with E. coli. When he examined his broth tube during
the next lab period, there was no growth at all. What could have gone wrong with his
experiment? Correct answer-All Correct:
o Jeffrey may not have allowed his loop to cool adequately.
o The culture could possibly have been dead.
o He could have not actually removed any inoculum (missed dipping his loop into the broth).
For proper aseptic technique, you should flame the opening of the tube after you remove the
cap and before you put the cap back on. T/F Correct answer-True
The loop should be sterilized in what part of the Bunsen burner flame? Correct answer-
Just above the bright blue cone
Questions and Answers % Correct
If you are using the 40x objective and have a 10x eyepiece,
what is your total magnification? Correct answer-400x
__________ is the ability to see or distinguish detail or the clarity of the image. Correct
answer-Resolution
What can be done to increase the contrast of a specimen to bright background of a light
microscope? Correct answer-You could stain the specimen.
Based off of your lab activities, what is this image of? Correct answer-bacterial capsule
When using a parfocal lenses, coarse adjustment is typically only done when the specimen is
initially viewed using the ______ objective. Correct answer-4x
Based off of your lab activities, what magnification is this image? Correct answer-100x
What is the purpose of using immersion oil with the 100X objective? Correct answer-To
reduce the scattering or bending of light from the image.
What magnification is this onion root tip image based off of your lab activity? Correct
answer-40x
, UTA Micro Lab Practical One Review (Quizzes);
Questions and Answers % Correct
_________ is a measure of how much the size of the size of the image of the specimen has been
increased. Correct answer-Magnification
It is ok to use oil on the 40x objective to reduce light scattering. T/F Correct answer-False
Which statement below is correct? Correct answer-Allow the loop to cool slightly before
putting it into a culture by waiting a few seconds before inoculating.
Jeffery inoculated a tryptone broth tube with E. coli. When he examined his broth tube during
the next lab period, there was no growth at all. What could have gone wrong with his
experiment? Correct answer-All Correct:
o Jeffrey may not have allowed his loop to cool adequately.
o The culture could possibly have been dead.
o He could have not actually removed any inoculum (missed dipping his loop into the broth).
For proper aseptic technique, you should flame the opening of the tube after you remove the
cap and before you put the cap back on. T/F Correct answer-True
The loop should be sterilized in what part of the Bunsen burner flame? Correct answer-
Just above the bright blue cone
