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Optoelectronics, Optics, Lights and Lasers > Non-Coherent Light Sources > Fluorescent Lamps > 

Quick question, please help :)?

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Author Topic: Quick question, please help :)?  (Read 275 times)
O_O
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« on: July 12, 2011, 02:03:24 PM »
A microscope technique that allows you to see specific parts of living specimen is
a) using stain under a light microscope
b) using a Scanning Electron Microscope
c) passing light from a microscope through a pinhole
d) using a fluorescent substance with a specimen under a light microscope

please answer--yes i ask a lot of science questions (if you've seen another one of my questions) but I'm not asking you to do my work, lol, but these are the questions I don't understand... Sad

Thanks in advance! Cheesy
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pedro_juan
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« Reply #1 on: July 12, 2011, 03:18:04 PM »
A
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Anov
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« Reply #2 on: July 12, 2011, 03:41:31 PM »
A> is the answer.
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pink_apple
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« Reply #3 on: July 12, 2011, 04:29:24 PM »
a). Staining process is used in microscopy to visualise the different structures of a specimen. This is because the specimens are colourless so you wouldn't be able to see the structure without a stain.
There are different types of dyes that stains different parts of the cell.
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Peky
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« Reply #4 on: July 12, 2011, 04:53:36 PM »
I think the best would be A)
Choice B is not good number one because the specimen has to be dead, and number two this tech is usually used to observed the topography of the specimen
choice C is just stupid
and choice D, you would normally not used a fluorescent dye with a light microscope
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