Microscopes

Question 1

What are the differences in magnification and resolution between a light microscope and electron microscope?

Answer 1

Light microscopes have much worse magnification and resolution than electron microscopes.

Question 2

Why is a light microscope better than an electron microscope?

Answer 2

Light microscopes are easy to use
You can have colour/ dyed images
They’re smaller than electron ones.
You can have a living thing under it.

However Electron microscopes are in black and white,
the sample will be killed if it is not dead,
you can only have very small samples under it,
you have to have a degree to use it/have to be educated,
they’re very expensive,
they’re very large.

Question 3

Why is an electron microscope better than a light microscope?

Answer 3

Electron microscopes have a better magnification and resolution, they can give a 3D image and it can look either inside or outside of samples.

Question 4

What does resolution and magnification mean?

Answer 4

Resolution: the ability to see the difference between two points (clearer)

Magnification: the ability to zoom further into an actual image.

Question 5

What are the top three rules for a scientific drawing?

Answer 5

1. Make sure to add labels and a title
2. The drawing should be detailed and accurate without being artistic
3. There should be some sort of scale

Question 6

A cell’s actual size is 0.1 mm.
The magnification is x40.

What is the image size of the cell?

Answer 6

4mm

(Image size = Actual size x Magnification
0.1 x 40 = 4)

Question 7

A cell’s image size is 6mm.
The cell’s actual size is 0.12mm.

What is the magnification?

Answer 7

x50

(Magnification = Image size/Actual size
6/0.12 = 50)