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.
Correct Answer:
Verified
Correct Answer:
Verified
Q56: A biologist is looking at human muscle
Q57: Which remains constant as a skeletal muscle
Q58: Starting with the arrival of an action
Q59: How does tropomyosin control muscle contraction?<br>A) It
Q60: If the slow-twitch muscle fibers of a
Q62: Which represents a similarity between fast- and
Q63: Which statement about myosin is true?<br>A) A
Q64: A biologist studying the electric organ in
Q65: Protein conformational change is essential during the
Q66: Which type of muscle cell is shown