What Is It Called When the Myosin Heads Pivot and Pull

question 12

Multiple Choice

What is it called when the myosin heads pivot and pull on the actin filaments?

• A) power stroke
• B) tropomyosin displacement
• C) action potential
• D) troponin

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Definitions:

Contribution Margin

The selling price per unit minus the variable cost per unit, which helps determine how much sales contribute to covering fixed costs and generating profit.

Variable Costs

These are costs that vary directly with the level of production or sales volume, such as raw materials and direct labor costs.

Fixed Costs

Costs that do not change with the level of goods or services produced within a certain range; such costs are incurred regardless of business activity levels.

Break-even Point

The point at which total income matches total costs, leading to a situation where there is no gain or deficit.