Which of the Following Statements Regarding Myosin in Skeletal Muscle

question 49

Multiple Choice

Which of the following statements regarding myosin in skeletal muscle is TRUE?

• A)Myosin cross-bridge heads contain two binding sites,one for actin and one for tropomyosin.
• B)Myosin is an ATPase.
• C)The rate of ATP hydrolysis by myosin is the same in all types of skeletal muscle.
• D)All of the myosin cross-bridge heads in a thick filament are oriented and rotate in the same direction.
• E)Troponin covers the binding site on myosin molecules until Ca²⁺ binds to troponin to remove it from its blocking position.

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Comparative Advantage

The capacity of a being to generate a product or offer a service at a reduced opportunity cost in comparison to another.

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motor vehicles with wheels designed primarily for the transport of people rather than goods.

Lumber

Timber that has undergone transformation into boards and beams, representing an intermediate phase in the creation of wooden materials.

Comparative Advantage

Comparative advantage refers to the ability of a country or firm to produce a particular good or service at a lower opportunity cost than its competitors.