Question

To study the details of protein molecules on the surface of a cell, a biologist would likely use a

scanning electron microscope

transmission electron microscope


compound light microscope

dissecting microscope

Answer 1

Scanning Electron Microscope?

Answer 2

Can you see proteins with a compound light or dissecting microscope?

Answer 3

@thomaster You'd most likely need a more powerful microscope to view the materials, therefore you couldn't see proteins with a compound light or dissecting microscope.

Answer 4

Yes :)
Do you know the difference between a scanning electron microscope (SEM) and transmission electron microscope (TEM)?

Answer 5

@thomaster No i'm unsure of how to differentiate the two.

Answer 6

Oke a TEM aims an electron beam through a sample. The more dense it is, the fewer electrons pass through.
A SEM sends a beam of electrons over the surface of the sample material. This will cause other electrons to emit from the sample.
SEM can reach a magnification up to 200,000 X
For TEM that's to 1,000,000 X

Answer 7

use a mnemonic device:
SEM:scanning - (S)urface
then the other goes to TEM:transmission for internal structure

Answer 8

sem is correct for anyone looking :)