Reference no: EM131897570

A student simulates muscle contraction in a model using the following order of events:

Calcium pumps of the sarcoplasmic reticulum open.

Tropomyosin moves.

Calcium ions bind to troponin.

Myosin heads bend to attach to actin filaments.

Based on the order of steps in the student's model, will the muscle successfully contract?

Yes, the muscle model will successfully contract because the sequence is correct

No, because tropomyosin cannot move before the myosin heads attach to actin

No, because tropomyosin cannot move before calcium ions bind to troponin

No, because the calcium pumps cannot open before the tropomyosin moves