Which Condition Contributes to the Length‒tension Relationship Observed in Skeletal

question 1

Multiple Choice

Which condition contributes to the length‒tension relationship observed in skeletal muscle?

• A) When sarcomere lengths are long, thin filaments overlap.
• B) When sarcomere lengths are long, thick and thin filaments do not overlap optimally.
• C) When sarcomere lengths are short, thick and thin filaments do not overlap fully.
• D) When sarcomere lengths are short, the elastic elements in the muscle are not fully stretched.

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Definitions:

Configuration

The fixed arrangement of atoms in a molecule that cannot be changed without breaking chemical bonds, different from conformation.

Asymmetric Carbon

A carbon atom bonded to four different groups or atoms, leading to chirality and optical activity in molecules.

Optical Activity

The ability of a substance to rotate the plane of polarization of polarized light, a property of chiral molecules.

Specific Rotation

A measure of the degree to which a chiral compound can rotate plane-polarized light, specific to the compound's concentration and temperature.