Diff: 1 Page Ref: 310, 312, 316 38) The mechanism of contraction in smooth muscle is different from skeletal muscle in that ________.
A. actin and myosin interact by the sliding filament mechanism
B. the trigger for contraction is a rise in intracellular calcium
C. the site of calcium regulation differs
D. ATP energizes the sliding process
Answer:C
Diff: 1 Page Ref: 310, 312, 316 38) The mechanism of contraction in smooth muscle is different from skeletal muscle in that ________.
A. actin and myosin interact by the sliding filament mechanism B. the trigger for contraction is a rise in intracellular calcium C. the site of calcium regulation differs D. ATP energizes the sliding process