What Is the Correct Order of Events That Occur During

question 43

Multiple Choice

What is the correct order of events that occur during muscle contraction? 1) Muscle shortens
2) Calcium binds to troponin
3) Filaments slide
4) T tubules are depolarized
5) Acetylcholine is released
6) ATP molecule is split

• A) 4 → 5 → 2 → 1 → 3 → 6
• B) 4 → 2 → 5 → 6 → 1 → 3
• C) 5 → 2 → 4 → 1 → 6 → 3
• D) 6 → 2 → 5 → 4 → 3 → 1
• E) 5 → 4 → 2 → 6 → 3 → 1

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Definitions:

Fixed Costs

Expenses that do not change in proportion to the activity of a business, such as rent, salaries, and insurance premiums, remaining constant regardless of variations in business activity.

Variable Costs

Expenses that change in proportion to the activity of a business, such as materials or labor directly tied to production volume.

Break-even Sales

The point at which total sales equal total expenses, resulting in no profit or loss.

Fixed Costs

Expenses that do not change with the level of goods or services produced by a business, such as rent, salaries, and insurance.