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I have a general question about the sarcomere:
do actin filaments go toward each other (decreasing length of the H band) and away from each other (increasing length of the H band) while using ATP?
Or is it that the relaxation or increasing the length of the Hband does not require ATP, while the contraction (decreasing length of the H band) is ATP dependent?
do actin filaments go toward each other (decreasing length of the H band) and away from each other (increasing length of the H band) while using ATP?
Or is it that the relaxation or increasing the length of the Hband does not require ATP, while the contraction (decreasing length of the H band) is ATP dependent?