Sara G.

asked • 02/11/17

Arrange the following list of biochemical events in the correct sequence. A) Cross-Bridge bends slightly, pulling on the Actin Filament B) An impulse is condu

Arrange the following list of biochemical events in the correct sequence.

A) Cross-Bridge bends slightly, pulling on the Actin Filament

B) An impulse is conducted along the sarcolemma and then deep into the muscle fiber by the T tubule

C) The Calcium Pump quickly begins moving Calcium ions back into the Sarcoplasmic Reticulum

D) Acetylcholine, stored in synaptic vesicles is released into the synaptic cleft and diffuses across it

E) The sarcoplasmic reticulum releases calcium ions which diffuse into the sarcoplasm around the myofibril and bind to troponin

F) Myosin cross bridges bind to Actin

G) Sarcomere shortens and skeletal muscle fiber contracts

H) The troponin-tropomyosin complex moves exposing active sites on Actin

I) A motor neuron transmits an impulse down its axon to its terminal end

J) Acetylcholine binds to Receptors (Proteins) on the Sarcolemma at the Motor End Plate

K) Skeletal muscle fiber relaxes

L) Acetylcholinesterase decomposes Acetylcholine at the neuromuscular junction

1 Expert Answer

By:

Naina B. answered • 02/12/17

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