Biology 380 - Cell Biology » Summer 2022 » Quiz 2, Ch 9 and 10

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Question #1
In this type of microscopy the stained part of the cell will absorb light of some wavelengths, while others pass through.
A.   Scanning electron microscopy
B.   Differential interference microscopy
C.   Transmission electron microscopy
D.   Bright-field microscopy
E.   Confocal microscopy
Question #2
In indirect immunocytochemistry, the secondary antibody is used:
A.   To increase the signal intensity
B.   In the first step of the procedure
C.   To bind to the antigen of interest
D.   To make antibodies in a species other than rabbits
Question #3
A plasma membrane will be thicker when:
A.   When there are fewer proteins in the membrane
B.   When there are more unsaturated hydrocarbon chains
C.   When there are fewer saturated hydrocarbon chains
D.   There are more proteins in the membrane
E.   When there are more saturated hydrocarbon chains
Question #4
In the structure of the plasma membrane phospholipid phosphatidylethanolamine, the fatty acid tails are attached to:
A.   Choline
B.   Phosphate
C.   An unsaturated cis bond
D.   Glycerol
E.   A hydrocarbon chain
Question #5
Soluble proteins found in the cytosol are easier to purify than membrane proteins. Which of the following could you use to help purify a protein from the membrane?
A.   Sucrose and High salt
B.   Sucrose and Ethanol
C.   Detergent and Ethanol
D.   Detergent and High salt

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