Question

question 6 (mandatory) (0.75 points) during which step of a muscle contraction cycle is atp needed? when myosin head does a power stroke and release of calcium ions into sarcoplasm when myosin head detaches from actin and release of calcium ions into sarcoplasm when myosin head detaches from actin and pumping of calcium ions back into sr when myosin head does a power stroke and pumping of calcium ions back into sr page 6 of 11

Explanation:

The image shows a multiple - choice question about muscle contraction steps but lacks proper formatting to identify individual options and the correct choice.

Answer:

There is not enough information provided to determine the correct answer as the options are not clearly separated and no correct - answer indication is given.