Portage Microbiology Exam #3
60 x 10 = 600x magnification
What is the total magnification of a sample imaged with a 60x objective and a 10x
eyepiece? (short answer)
False. Adherent, flat cells are almost invisible due to the limits on both resolution
and contrast
True or False: A cell that is adherent, flat, and unstained is easily identified using
bright field microscopy
Protozoa with diameter of 150um and skin cell with diameter of 1500 um (have to
be greater than 100um
Which of the following could be seen clearly by the unaided eye? (multiple
choice)
1. Eyepiece
2. Neck
3. Fine adjustment knob
Portage Microbiology Exam 3.pdf Portage Microbiology Exam 3 Portage Microbiology Exam 3.pdf/ 2026 with Solution
, Portage Microbiology Exam 3.pdf/ 2026 with Solution Portage Microbiology Exam 3 Portage Microbiology Exam 3.pdf
4. Objective
5. Stage
6. Base
Label the following unmarked microscope components by matching it with the
components provided
Flourescence
This type of microscope is best suited for visualizing GFP, RFP and YFP proteins
(given list of microscopes)
Phase-Contrast
This type of microscope can provide detailed images of live cells without staining
(given list of microscopes)
Dark Field
This type of microscope is used to greatly increase the contrast between samples
and background by reflecting light off of the specimen (given list of microscopes)
Portage Microbiology Exam 3.pdf Portage Microbiology Exam 3 Portage Microbiology Exam 3.pdf/ 2026 with Solution