Question

To study the details of protein molecules on the surface of a cell, a biologist would likely use a:
A. scanning electron microscope
B. transmission electron microscope

Answer 1

TEM: Transmission electron microscopes pass a beam of electrons through a thin specimen similar to how a compound light microscope transmits light. Scientists can apply stain to the specimen to increase contrast in the image.
Transmission electron microscopes are mainly used for studying the internal structures of cells that cannot be viewed under light microscopes.
Notice that the magnified images of the specimen are produced in black and white. Scientists can use computers to add artificial color to enhance visibility when needed.
SEM: Scanning electron microscopes are useful for studying the details of a specimen’s surface. The electron beam scans the specimen’s surface, which is coated with a thin layer of gold metal. The electrons that scatter off of the gold-coated surface are focused onto a screen, forming a detailed image of the specimen surface. The image is three-dimensional and black and white.

Answer 2

I think I would have to go with A... I have done this b4. But not sure. But A soundz otey.

Answer 3

I am aware that SEM may be the best way to go but they're talking about proteins on the surface of a cell & this Q has been asked before on OpenStudy. It's really 50/50.

Answer 4

@iloveyouboo

Answer 5

I'd say TEM :)

Answer 6

Are you in k12?

Answer 7

What is your reasoning behind your answer? And no @biznessman

Answer 8

Okay, nvm.

Answer 9

So none of us are capable at figuring this out?

Answer 10

imma go with a as well

Answer 11

So I have two people with A and 1 person with B. I'm personally opting for B, too.

Answer 12

Im almost positive its A

Answer 13

I don't know what to do.. I'm very split between SEM & TEM

Answer 14

Ok, Im positive its A.

Answer 15

How so?

Answer 16

My sister had this question. She just said it was A

Answer 17

I understand your explanation but can I have a screenshot? (I, as a stranger, don't know the legitimacy of the answer)

Answer 18

......, i cant log into her question from last year. But she's a whiz in Biology, and I promise its A. I promise

Answer 19

Okay. I will put trust into your answer and will let you know my results in a few mins :)

Answer 20

ok :)

Answer 21

Wait A in SEM right?

Answer 22

is*

Answer 23

Yes @xPastelx

Answer 24

ok, good :)

Answer 25

Was it right? @Aureyliant

Answer 26

Yes, it was. Thank you so much. I'll try my best with helping you out on the math thread, too. Sorry for the delay. @xPastelx

Answer 27

Its ok. I'm happy I could help! Thanks! @Aureyliant