Which of the Following Statements Are True of the Sliding

question 144

Multiple Choice

Which of the following statements are true of the sliding filament mechanism? (Read carefully and select all of the correct statements.)

• A)The calcium ions released from the sarcolemma bond to troponin.
• B)The sarcoplasmic reticulum inhibits contraction until a nerve impulse arrives.
• C)With calcium ions, troponin shifts tropomyosin away from actin.
• D)Myosin filaments pull actin filaments toward the center of the sarcomere.
• E)Myosin releases the energy from ATP.
• F)When a muscle fiber contracts, all of its sarcomeres contract.

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Definitions:

Fixed Cost

Costs that do not change with the level of production or sales, such as rent, salaries, and loan repayments.

Economies of Scale

The cost advantages that a business can exploit by expanding their scale of production, leading to a lower cost per unit.

Diseconomies of Scale

Increased costs per unit that occur when a company grows too large, leading to inefficiencies.

Long-Run Average Cost Curve

A graphical representation showing the minimum cost per unit at which a firm can produce any given level of output in the long run when all inputs are variable.