You Observe the Structure and Function of a Muscle Fiber

question 22

Multiple Choice

You observe the structure and function of a muscle fiber in the lab. You find that membrane depolarization is not always necessary in order to cause contraction, and that actin filaments are not arranged longitudinally along the length of the fiber. Most likely you are observing a _______________________.

• A) skeletal muscle cell
• B) cardiac muscle cell
• C) smooth muscle cell
• D) skin cell

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Definitions:

Time Costs

The opportunity costs associated with the time spent on an activity instead of other, potentially more valuable, activities.

Transaction Costs

Expenses incurred in making an economic exchange, including search, bargaining, and enforcement of contracts.

Volume Of Trade

The total quantity of shares or contracts traded for a specified financial instrument or market within a specified period.

Gains From Trade

The increase in utility or welfare that countries or individuals obtain by engaging in voluntary exchange of goods and services.