The Contraction of Skeletal Muscles Is Based on ________

question 21

Multiple Choice

The contraction of skeletal muscles is based on ________.

• A) myosin filaments coiling up to become shorter
• B) actin and myosin filaments both coiling up to become shorter
• C) actin cross-bridges binding to myosin and transitioning from a high-energy to a low-energy state
• D) myosin cross-bridges binding to actin and transitioning from a high-energy to a low-energy state

---

Definitions:

Competitive Market

A market structure characterized by a large number of sellers and buyers, leading to competitive prices and quality of goods and services.

Pure Competition

A market structure characterized by a large number of small firms, a homogeneous product, complete information, and free entry and exit, leading to price taking behavior.

Commodity Products

Goods that are interchangeable with others of the same type and are usually sold based on price rather than brand or differentiation.

Monopolistic Competition

Monopolistic competition is a market structure characterized by many sellers offering differentiated products or services, leading to a competitive environment where companies have some price-making power.