Which statement about excitation-contraction coupling is incorrect?
A) Calcium ion is released from the transverse tubule.
B) Calcium ion is released from the sarcoplasmic reticulum.
C) Tropomyosin moves to expose myosin binding sites on actin.
D) Troponin binds calcium ion and signals tropomyosin to move.
E) Relaxation requires uptake of calcium ions by the sarcoplasmic reticulum.
Correct Answer:
Verified
Q60: During the _ phase of action potential
Q61: Communication between axons and muscle fibers occurs
Q62: A muscle producing tension that peaks but
Q63: Triggering of the muscle action potential occurs
Q64: When calcium ion binds to troponin,
A)tropomyosin moves
Q65: When acetylcholine binds to receptors at the
Q66: Which of the following become connected by
Q68: The cytoplasm of the neuromuscular synaptic terminal
Q70: Which of the following is greater?
A)the concentration
Q72: How would the loss of acetylcholinesterase from
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