Cross Bridges

question 186

Multiple Choice

Cross bridges

• A) extend between the A and I bands and bend to pull the bands together during muscle contraction.
• B) are formed by the globular heads of the myosin molecules.
• C) link troponin and tropomyosin to actin to form the thin filament.
• D) extend from the thick filaments and bind to actin, then bend to pull the thin filaments in closer together during muscle contraction.
• E) two of these answers.

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Definitions:

Labor Price Variance

The difference between the actual cost of labor and the budgeted or standard cost, often analyzed in cost accounting.

Standard Rate

A predetermined cost or price that is established for accounting or budgeting purposes, often used in costing and financial analysis.

Actual Hours

The real number of hours worked, as opposed to planned or estimated hours.

Overhead Controllable Variance

The difference between the actual overhead incurred and the overhead that should have been incurred, based on controllable factors.