If Calcium Is Not Present in the Muscle Cell What

question 27

Multiple Choice

If calcium is not present in the muscle cell what complications can occur in regards to muscle contraction?

• A)Tropomyosin will not be pulled away from the myosin binding sites.
• B)Myosin heads will not bind to the actin filament.
• C)The power stroke will not be produced preventing the actin filament from moving.
• D)All of these are complications resulting from a lack of calcium.

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Definitions:

Pubertal Process

The biological and physical changes that occur during puberty, marking the transition from childhood to adolescence.

Sexes

Categories, typically male or female, within which organisms are classified on the basis of their reproductive roles and functions.

Years

Units of time equivalent to 365 or 366 days, used in measuring duration and age, among other things.

Secondary Sex Characteristics

Physical features that distinguish the two sexes from each other, apart from the reproductive organs, that emerge during puberty.