2007-04-12 08:33:04 · 3 answers · asked by MSG 1 in Science & Mathematics ➔ Biology
There are three major functions of ATP in muscle contraction. First of all, ATP is necessary to move the myosin head group into the energized configuration. Secondly, after actin and myosin bind and undergo the power stroke, it is necessary for ATP to bind to the myosin in order for the myosin to detach from the actin. (Interestingly, the fact that after death, bodies can't produce ATP, so the actin stays tightly bound to the myosin, accounts for "rigor mortis".) Last but not least, ATP is necessary for the Calcium ATPase that pumps calcium ions from the myoplasm back into the sarcoplasmic reticulum, where it is stored.
2007-04-12 09:27:12 · answer #1 · answered by kt 7 · 1⤊ 0⤋
When ATP is hydrolysed to ADP, energy is released and this energy is used for a variety of purposes.
2016-05-18 02:38:32 · answer #2 · answered by harriet 3 · 0⤊ 0⤋
google scholar and you will finds hundreds of papers
2007-04-12 08:37:32 · answer #3 · answered by bombaybubba 3 · 0⤊ 2⤋