What happens to the actin and myosin during a muscle contraction?

Answers

Answer 1

Answer:

Once the myosin-binding sites are exposed, and if sufficient ATP is present, myosin binds to actin to begin cross-bridge cycling. Then the sarcomere shortens and the muscle contracts. In the absence of calcium, this binding does not occur, so the presence of free calcium is an important regulator of muscle contraction.


Related Questions

What compound do plants get from their roots for photosynthesis?

options:✨✨✨

Carbon Dioxide
Oxygen
Glucose
Water

Answers

Oxygen lol have a good day

If a flower is not pollinated what will happen?​

Answers

Answer:

Will die?

Explanation:

We could have a shortage to our food supply
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