Microscopy

Question 1

What is the point of using microscopes ?

Answer 1

To increase the resolution

Resolution - distinguish two points apart

Question 2

Why do people use electron microscopes?

Answer 2

Invented in 1930s , higher magnification and resolution , can see internal structures of the cell, greater understanding of how cells work.

Question 3

What is a light microscope?

Answer 3

Invented in 1950s use light can see the nuclei and chloroplasts

Question 4

Microscope practical :

Answer 4

1. thin slice of substance
2. One drop of water using Pipette onto slide use tweezers for substance
3. Add iodine to stain substance to see structures
4. Cover slip on one end of specimen, clip it down with no bubbles.
5. Select the lens
6. Adjust it so you can see the specimen clearly
7. Measure the diameter of the circular area visible your FOV

Question 5

Scientific drawing ?

Answer 5

Sharp pencils 
Outlines 
No colour or shading 
Half of the space in proportion 
Label with straight lines 
Don’t cross over lines 
Include magnification scale