When Ca²⁺ Is Present at High Levels in the Sarcoplasm

question 5

Multiple Choice

When Ca²⁺ is present at high levels in the sarcoplasm of striated muscles,then

• A)TnI has a strong interaction with actin.
• B)TnC has a strong interaction with TnI.
• C)TnT has a strong interaction with myosin.
• D)TnT has a weak interaction with Ca²⁺.

---

Definitions:

Trait Variability

The degree to which individual characteristics or traits differ among individuals within a population.

Absolute Sense

A term used to indicate a situation or measurement that is considered or believed to be entirely certain and unequivocal.

Shared Environment

Factors in the environment that individuals living together share and that can contribute to the similarities between them.

Extraversion

A personality dimension that describes the extent to which a person is outgoing, sociable, and energetic, one of the Big Five traits.