Microscopy

Question 1

use of microscopes

Answer 1

lets us see things we can’t see with the naked eye

Question 2

How do light microscopes work ?

Answer 2

use light and lenses to form an image of a specimen and magnify it which lets use see individual cells and large subcellular structures e.g. nuclei

Question 3

How do electron microscopes work ?

Answer 3

use electron instead of light to form an image, they have much higher magnification then light microscopes and higher resolution.

Question 4

Define resolution

Answer 4

Ability to distinguish between 2 points

Question 5

What can electron microscopes do that light microscopes can’t ?

Answer 5

lets us see much smaller things in more detail like internal structure of mitochondria or chloroplast but also lets us see tinier things like ribosomes and plasmids.

Question 6

Magnification formula

Answer 6

Magnification = image size / real size

Question 7

micrometres μm to mm and cm

Answer 7

/ 1000
/ 10 000