Microscopy

Question 1

What is the formula for magnification?

Answer 1

magnification = image size/real size

Question 2

How do light microscopes work?

Answer 2

They use light and lenses to create a magnified image of a specimen.

Question 3

How did the development of the light microscope help scientists?

Answer 3

Helped them to view individual cells and their large sub cellular structures like nuclei. Since being first developed, they’ve been developed to have higher magnifications and resolutions

Question 4

What is typically the max magnification of a light microscope?

Answer 4

x1500

Question 5

What is typically the max resolution of a light microscope?

Answer 5

0.2μm

Question 6

Why are electron microscopes better to study cells in finer detail?

Answer 6

An electron microscope has much higher magnification and resolving power than a light microscope. This means that it can be used to study cells in much finer detail. This has enabled biologists to see and understand many more sub-cellular structures.

Question 7

How do electron microscopes work?

Answer 7

They use electron beams (which have a much smaller wavelength) to form an image.

Question 8

How do electron microscopes compare to light microscopes?

Answer 8

They have a higher magnification and resolution than light microscopes.

Question 9

What can electron microscopes be used to see?

Answer 9

much smaller things in much more detail e.g. the internal structure of mitochondria or chloroplasts. We can even see tinier things like ribosomes and plasmids.