EmanuelWake88 EmanuelWake88

04-05-2015
Biology

Answered

What happens when ATP binds to myosin heads during muscle contraction?
A. Calcium ions are released from the sarcoplasmic reticulum.
B. Calcium ions are taken up by the sarcoplasmic reticulum.
C. Cross-bridges between myosin heads and actin filaments are broken.
D. Myosin heads form cross-bridges with actin filaments.

Answer :

Vixelator Vixelator

04-05-2015

The answer is C. ATP binds to myosin heads...This causes release of the hold for myosin head(s) on the actin filament.

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