The Following Are the Main Steps in the Generation of an Action

question 157

Multiple Choice

The following are the main steps in the generation of an action potential. 1. Sodium channels are inactivated.
2) Voltage- gated potassium channels open and potassium moves out of the cell, initiating repolarization.
3) Sodium channels regain their normal properties.
4) A graded depolarization brings an area of an excitable membrane to threshold.
5) A temporary hyperpolarization occurs.
6) Sodium channel activation occurs.
7) Sodium ions enter the cell and depolarization occurs.
The proper sequence of these events is

• A) 4, 6, 7, 1, 2, 3, 5.
• B) 6, 7, 4, 1, 2, 3, 5.
• C) 4, 2, 5, 6, 7, 3, 1.
• D) 2, 4, 6, 7, 1, 3, 5.
• E) 4, 6, 7, 3, 2, 5, 1.

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Definitions:

Standard Costs

Predetermined cost estimates used for budgeting purposes and measuring performance, often seen as benchmarks for the actual costs of production.

Variance

The difference between planned, budgeted, or standard cost and actual cost in accounting.

Standard Costs

The predetermined costs of manufacturing a product or providing a service, used for budgetary and performance evaluation purposes.

Standard Cost

A predetermined cost of manufacturing, serving, or marketing an item, which includes direct labor, direct material, and overhead charges.