topic cell biology, sub topic microscopy Flashcards
What is the importance of microscopes in biology?
Microscopes are important for biology as they allow us to observe cells and subcellular structures.
What do light microscopes allow us to see?
Light microscopes can be used to look at cells and see large subcellular structures like the nucleus.
How do electron microscopes differ from light microscopes?
Electron microscopes have a higher resolution and magnification than light microscopes, allowing us to see smaller details like ribosomes and plasmids.
When were electron microscopes invented in relation to light microscopes?
Electron microscopes were invented after light microscopes.
What is magnification?
Magnification is how many times bigger the image is than the real thing.
How do you calculate magnification?
Magnification can be calculated using the formula: magnification = image size / real size.
What is an example of calculating magnification?
If the width of a cell is 0.02 mm and its image under a microscope is 8 mm, the magnification is 8 mm ÷ 0.02 mm = x 400.
What is standard form?
Standard form is useful for writing very big or very small numbers in a simpler way.
How do you convert 0.0025 mm to standard form?
0.0025 mm in standard form is 2.5 × 10^-3.
What should you keep in mind when calculating magnification?
Ensure that image size and real size are in the same units for the magnification calculation to work.
