Myosin phosphatase
A. activates myosin kinase.
B. removes phosphate from myosin.
C. forms the cross-bridge.
D. binds to calcium-calmodulin complex.
E. opens Ca2+-channels.
Answer: B
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Regarding the relationships between the rates of oxygen consumption/carbon dioxide production and alveolar ventilation, which of these statements is TRUE?
A. In hypoventilation, alveolar PCO2 decreases below resting levels. B. In hyperventilation, alveolar PCO2 can decrease to zero. C. An increase in ventilation with a matching increase in metabolism is called hyperventilation. D. A decrease in metabolism without a similar decrease in alveolar ventilation would result in hyperventilation. E. Increased ventilation without a similar increase in metabolism is called hypoventilation.
Which portion of the fibula articulates with the talus?
A) calcaneus B) medial malleolus C) head D) lateral malleolus
What are caveolae?
A. Enzymes that removes phosphate from myosin B. Structures that allow for relatively constant tension maintained for a period of time C. Shallow invaginations of plasma membrane D. Ion channels that allow for rapidly developing action potentials E. Parts of the intracellular cytoskeleton
Which of the following cranial nerves is mispaired?
A) Abducens - V B) Facial - VII C) Oculomotor - III D) Accessory - XI