Which of the following is not a function of the platelet surface-connected canalicular system (SCCS)?
a. Produces energy for the cell
b. Delivers granule contents to the surface
c. Connects the internal contents to the surface
d. Stores plasma coagulation factors
ANS: A
Granule contents are delivered to the surface of the platelet and released through the SCCS. It twists throughout the platelet, providing a large system in which additional plasma coagulation proteins are found in the glycocalyx. Because this is part of the platelet membrane, it connects the internal contents to the surface. It does not produce energy.
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