Course

Cell Biology

Study Pack

Set 18 Techniques In Cell And Molecular Biology

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Question 1

(Multiple Choice)

Free
The fluorescence imaging method in which a specimen containing one or more photoswitchable fluorophores is illuminated with pulses of light is known as:

A)fluorescence recovery after photobleaching
B)laser scanning confocal microscopy
C)super-resolution microscopy
D)light sheet microscopy
E)fluorescence resonance energy transfer

Answer

Question 2

(Multiple Choice)

Free
Of what is the electron source of an electron microscope, the cathode, composed?

A)a tungsten wire filament
B)an iron wire filament
C)a titanium wire filament
D)an iron spike filament
E)a tungsten depressor filament

Answer

Question 3

(Multiple Choice)

Free
How do you prepare tissue for electron microscopy without using fixatives?

A)Freeze it gradually over a few hours.
B)Freeze it rapidly.
C)Subject it to a vacuum rapidly.
D)Heat it to dry it rapidly.
E)Coat it quickly in heavy metal.

Answer