In excitation-contraction coupling,
A) calcium ions must bind with myosin to expose active sites on actin.
B) myosin heads bind to exposed active sites on actin.
C) cross-bridges form between myosin heads and calcium ions.
D) movement of the troponin-tropomyosin complex causes actin myofilaments to slide.
E) ATP binds to actin myofilaments.
Correct Answer:
Verified
Q54: An action potential
A) occurs when the local
Q58: The outside of the resting plasma membrane
Q59: The plasma membrane of an excitable cell
Q60: In which of the following situations does
Q64: If sodium ions cannot enter a muscle
Q65: The sites where a chemical substance is
Q66: The sarcoplasmic reticulum
A)stores calcium ions.
B)shortens during muscle
Q71: When an action potential reaches the presynaptic
Q74: Synaptic vesicles in the neuromuscular junction contain
A)
Q79: Lack of acetylcholinesterase in the synaptic cleft
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents