Microscopes, magnification and resolution
Describe the differences between light and electron microscopes. Describe the different features that can be seen in images from light and electron microscopes and relate this to their magnification and resolution.
Microscopes, magnification and resolution
Describe the differences between light and electron microscopes. Describe the different features that can be seen in images from light and electron microscopes and relate this to their magnification and resolution.
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Lesson details
Key learning points
- Describe the differences between images produced by light and electron microscopes
- Explain how electron microscopes have enhanced our understanding of cell structures and processes
- Explain what is meant by resolution and magnification
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6 Questions
Q1.
Which piece of equipment would you use to view cells clearly?
centrifuge
telescope
Q2.
Which of these is not a sub-cellular structure?
chloroplast
nucleus
ribosome
Q3.
What does the word magnify mean?
to make something appear flat
to make something appear smaller
to make something black and white
Q4.
Put these units in order of size, starting with the largest first.
Q5.
Match each part of the microscope to its function.
holds the slide in place
shines light through the specimen
magnify the specimen
Q6.
What is the correct symbol for a micrometer?
km
mm
nm
6 Questions
Q1.
What is the defintion of resolution?
how far away the lenses are from the sample
how magnified a sample is
Q2.
Which sub-cellular structure cannot be viewed with a light microscope?
chloroplasts
nucleus
Q3.
Which two statements are correct?
Light microscopes have a higher magnification than electron microscopes.
Light microscopes only use dead specimens.
Q4.
Which statement is correct for light microscopes?
magnification up to 2,000,000
magnification up to 20,000
magnification up to 200,000
Q5.
Which of these is a feature of using an electron microscope?
has a low magnification
has a low resolution
Q6.
Which statement is not true for electron microscopes?
can view ribosomes
fires electron beams at specimen
magnification is 1-50 million times