Of the Steps in Excitation-Contraction Below, Which Step Occurs Before

question 214

Multiple Choice

Of the steps in excitation-contraction below, which step occurs before the others?

• A)Exposed actin sites bind with myosin cross bridges.
• B)Sodium channels open in the fiber's membrane.
• C)Calcium is released from the sarcoplasmic reticulum.
• D)Troponin binds calcium.
• E)Attachment of ATP allows for cross bridge detachment.

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Definitions:

Recreation

Activities or experiences carried out for enjoyment, leisure, or relaxation in free time.

Leisure

Refers to free time not taken up by work, chores, or obligations, typically used for rest, recreation, or personal interests.

Commodification

The process of turning something into a commodity that can be bought, sold, or traded in the market.

Recreational Activities

Recreational activities are activities performed for enjoyment, amusement, or pleasure during one's leisure time.