I. Microscope Flashcards
Q: This component is used to magnify the image of the specimen and is located at the top of the microscope. What is it?
ocular lens
Q: This part supports the microscope when carried and connects the base to the head. What is it?
arm
Q: These lenses are mounted on a revolving nosepiece and are used to further magnify the image of the specimen. What are they?
objective lens
Q: This knob is used for making large adjustments to the focus, typically when using low-power objectives. What is it?
coarse adjustment knob
Q: This knob is used for fine-tuning the focus to see details clearly, especially with high-power objectives. What is it?
fine adjustment knob
Q: This flat platform holds the slide in place for observation. What is it?
stage
Q: This component controls the amount of light that reaches the specimen. What is it?
diaphragm
Q: This lens focuses light onto the specimen to enhance illumination. What is it?
condenser
Q: This lever adjusts the diaphragm to regulate light intensity. What is it?
diaphragm lever
Q: This diaphragm has an adjustable aperture that controls the amount of light reaching the specimen. What is it?
diaphragm iris
Q: These knobs move the stage left, right, forward, and backward to position the specimen. What are they?
stage control knobs
Q: This light source illuminates the specimen. What is it?
illuminator
Q: This component provides stability and supports the microscope. What is it?
base
Q: These secure the slide in place on the stage. What are they?
stage clips
Q: How do you prepare a wet mount slide for observation?
- Place the onion membrane on a water-dropped slide.
- Lower a cover slip at a 45° angle to avoid air bubbles.
- Wipe excess water around the cover slip with tissue.
Q: What’s the first step in using a microscope?
A: Place the object glass with the specimen on the object table and clamp it in place.
Q: What should you aim first when using a microscope?
A: Aim the objective lens with the weakest magnification power at the specimen.
Q: How do you turn on the microscope’s light?
A: Turn on the light using the button located at the base of the microscope.
Q: How do you adjust the object table for proper lighting?
A: Move the object table using the available buttons until the specimen is centered and exposed to light.
Q: What should you do after adjusting the object table for light exposure?
A: Move the object table towards the objective lens using the focus control knob until it cannot move closer.
Q: How do you focus the image on the microscope?
A: Look through the eyepiece lens and move the object table away from the objective lens until the clearest image is found.
Q: How do you change magnification and adjust focus?
A: Change magnification by moving the nosepiece, then refocus using the fine focus adjuster.
