Muscle Myofibrils

question 54

Multiple Choice

Muscle myofibrils

• A) are found in the sarcolemma.
• B) extend from the sarcolemma to the T-tubule.
• C) contain myosin and actin myofilaments.
• D) hold muscle fibers together.
• E) do not appear striated.

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Definitions:

Hybridization

A model explaining the bonding structure of molecules based on the mixing of atomic orbitals into new hybrid orbitals.

CCO Bond Angle

Refers to the angle between two carbon atoms and an oxygen atom within a molecule, impacting the molecule's shape and reactivity.

Acetone

A volatile, colorless liquid used as a solvent and an antiseptic, known chemically as propanone with the formula (CH3)2CO.

Hybridization

The concept of mixing atomic orbitals to create new hybrid orbitals for bonding, explaining the geometry of molecular structures.