Numerous mitochondria possessing unusual tubular cristae are a distinguishing anatomic feature of:
a. Exocrine pancreatic acinar cells
b. Nerve cells of the cerebral cortex
c. Pancreatic islet cells
d. Skeletal muscle cells
e. Steroid-secreting cells in the adrenal cortex
ANS: E
Mitochondria possess enzymes required for critical steps in steroid synthesis; why these enzymes are associated with tubular cristae is not yet known. See 1-12.
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