Arrange the following list of biochemical events in the correct sequence.
(1) An impulse is conducted along the sarcolemma and then deep into the muscle fiber by
the T tubule.
(2) Achtocholine is released into the synaptic cleft and diffuses across it.
(3) The sarcoplasmic reticulum releases calcium ions which diffuse into the sarcoplasm
around the myofibril and bind to troponin
(4) Myosin cross bridges bind to Actin and contract
(5) The troponin-tropomyosin complex moves exposing active sites on Actin.
2, 5, 1, 3, 4
2, 1, 3, 5, 4
1, 2, 3, 4, 5
1, 3, 2, 5, 4
2, 1, 3, 4, 5
