Skeletal Muscle Contraction Begins When Calcium Ions Bind to

question 56

Multiple Choice

Skeletal muscle contraction begins when calcium ions bind to

• A) energized cross-bridges.
• B) myosin.
• C) actin.
• D) tropomyosin.
• E) troponin.

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Pound for pound

A comparison term used to describe the strength or value of something relative to its weight.

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The amount of iron, a vital mineral for human health, present in certain substances or objects.

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A manufactured food designed and marketed for feeding to babies and infants under 12 months of age, usually prepared for bottle-feeding or cup-feeding from powder or liquid.

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A common dairy product obtained from the milk of cows, used as a beverage or food ingredient.