Microscope Parts and Functions

Imagine you are a scientist studying cells and you are using a microscope to examine a cell sample. What would you use the course adjustment knob for?

• To rotate the stage of the microscope.

• To adjust the focus of the cell sample

• To change the magnification level.

• To adjust the brightness of the light.

John, a biology student, is studying the structure of an onion cell in his school lab using a microscope. What would he use the fine adjustment knob on the microscope for?

• To adjust the brightness of the microscope while observing the onion cell

• To change the magnification of the microscope to see the onion cell better

• To rotate the onion cell on the microscope for a different view

• To make small, precise adjustments to the focus of the onion cell for a clearer image

Dr. Emma, a biologist, is studying a microscopic organism she discovered in a local pond. Which tool would she use to see it more clearly?

• A scale to measure the weight of the organism.

• A microscope to magnify the organism.

• A spectrometer to analyze the chemical reactions of the organism.

• A telescope to capture images of the organism from a distance.

John is a biology researcher studying plant cells. He is using a compound light microscope in his lab to examine the cells. He wonders, what is the field of view in his microscope?

• The field of view in John's microscope is the amount of light that passes through the microscope's lenses.

• The field of view in John's microscope is the whole area visible through the microscope's lenses at a given magnification.

• The field of view in John's microscope is the number of lenses present in the microscope.

• The field of view in John's microscope is the distance between the microscope and the object being viewed.

When a biologist, Dr. Smith, is studying a sample of bacteria under her microscope and decides to increase the magnification, what happens to her field of view?

• The field of view decreases.

• The field of view becomes blurry.

• The field of view remains the same.

• The field of view increases.

You are a biologist studying a rare bacteria under the high-powered objective lense in your lab. What should happen when you gently turn the fine adjustment knob clockwise (away from you)?

• The image of the bacteria becomes clearer and sharper.

• The image of the bacteria becomes darker and less visible.

• The image of the bacteria becomes blurrier and less focused.

• The image of the bacteria becomes distorted and pixelated.

You are a scientist studying cells under a microscope. How would you determine the total magnification of the image you are viewing?

• Add the magnification of the eyepiece to the objective lens you are using.

• Add the magnifications of all three objective lenses on your microscope.

• Multiply the magnifications of all three objective lenses on your microscope.

• Multiply the magnification of the eyepiece and the objective lens you are using.

You are a scientist studying cells under a microscope. Which power of objective do you start with when you first look at the specimen?

• high power

• medium power

• low power

• diaphragm

Imagine you are a scientist studying cells under a microscope. If you move your slide to the left, in which direction does it appear to move?

• to the left

• upwards away from you

• down towards your belly

• to the right

In a biology lab, when you are observing the letter "e" under a microscope, the image appears to be: (select all that apply)

• flipped diagonally

• inverted left to right

• flipped upside down

• the same as it appears on the stage