Lesson Worksheet: Using Microscopes Biology
In this worksheet, we will practice recalling how to use light microscopes, calculate magnification, and compare different types of microscopes.
Q1:
Which of the following statements about light and electron microscopes is correct?
- AElectron microscopes have a higher resolution and a higher magnification than light microscopes.
- BElectron microscopes have a higher resolution but a lower magnification than light microscopes.
- CLight microscopes have a higher magnification and higher resolution than electron microscopes.
- DLight microscopes have a lower magnification but a higher resolution than electron microscopes.
Q2:
A red blood cell is viewed under a microscope as 4 mm wide. The actual width of the cell is 0.8 mm. What is the magnification of the image?
- A
- B
- C
- D
- E
Q3:
The Ebola virus is 80 nm long. Under a microscope, it appears to be 1 mm long.
What is the length of the image of the virus in nanometers?
What is the magnification of this image?
- A80x
- B1,250x
- C12,500x
- D100x
- E8x
Q4:
A plant cell is viewed under a microscope. The diameter of the cell in the image produced is 25 mm. The image has been magnified 1,000x. What is the cell’s actual diameter?
Q5:
If a fungus is 2,000 micrometers long, how long is it in millimeters?
Q6:
If the eye of a flea is 0.001 millimeters wide, how wide is it in nanometers?
Q7:
If a bacteria cell is 9 micrometers wide, how wide is it in millimeters?
Q8:
Fill in the blanks: Magnification = size/ size.
- Aimage, actual
- Bactual, image
- Cimage, magnification
- Dactual, magnification
Q9:
The diagram provided shows a light microscope.
Which of the following structures is represented by label 1?
- AObjective lens
- BEyepiece
- CCoarse focus knob
- DStage
- ELight
Which of the following structures is represented by label 2?
- ALight
- BCoarse focus knob
- CStage
- DObjective lens
- EEyepiece
Which of the following structures is represented by label 3?
- AEyepiece
- BObjective lens
- CLight
- DCoarse focus knob
- EStage
Which of the following structures is represented by label 4?
- AStage
- BObjective lens
- CStand
- DLight
- ECoarse focus knob
Q10:
A student views a plant cell underneath a microscope and produces a scientific drawing, shown here. What is incorrect about this scientific drawing?
- AThey have colored in parts of the cell.
- BThey could not have seen this structure with only 1,000x magnification.
- CThey have not drawn the cell to scale.
- DThey have labeled the cell incorrectly.
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