Portage Microbiology Exam #3 questions with correct answers

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