Cross-bridges form between the contractile proteins of the muscle cell. The movement of cross-bridges shortens the muscle fiber. What two proteins participate in cross-bridge formation?
A) actin and myosin
B) troponin and titin
C) titin and myosin
D) titin and actin
Correct Answer:
Verified
Q1: What is the function of tropomyosin in
Q2: Cnidarians, such as _, have muscle fibers.
A)clams
B)earthworms
C)jellyfish
D)sea
Q3: The cross-bridge power stroke corresponds to which
Q5: Curare is a poison that was used
Q6: Which letter(s) in the diagram of a
Q7: What event results from the hydrolysis of
Q8: Which letter(s) in the diagram of a
Q9: The contractile machinery of muscles is only
Q10: Which of the following is the motor
Q11: Calmodulin is involved in the regulation of:
A)skeletal
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