0071509674.pdf

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Cell Biology:


Membranes


Questions


DIRECTIONS: Each item below contains a question or incomplete
statement followed by suggested responses. Select the one bestresponse to
each question.

30.The region labeled with the arrow in the accompanying electron
micrograph of the plasma membrane is responsible for which of the fol-
lowing functions?

a. Creation of a barrier to water-soluble molecules
b. Specific cellular receptors for ligands
c. Catalyzing membrane-associated activities
d. Transport of small ions
e. Connections to the cytoskeleton

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