Which Statement About Actin Is True

question 61

Multiple Choice

Which statement about actin is true?

• A) Two strands of tropomyosin are twisted around polymerized actin.
• B) Actin carries out the power stroke motion that allows filaments to slide during contraction.
• C) Actin is the only protein making up thin filaments in a muscle fiber.
• D) Troponin forms the head of the actin molecule.
• E) Tropomyosin has ATPase activity and interacts with the actin.

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Definitions:

Mentally Ill

A broad term covering a range of mental health conditions that affect mood, thinking, and behavior.

Contractual Capacity

The legal ability of a party to enter into a contract, often considered in terms of age, mental competency, and similar factors.

Mental Competency

The ability of an individual to understand the nature and effects of their actions, particularly relevant in legal proceedings and contracts.

Declaring Incompetent

A legal status adjudged by a court where an individual is deemed incapable of managing their own affairs due to mental disability or incapacity.