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saveliy_v [14]
3 years ago
13

For excitation-contraction coupling, which of the following is/are required? and Why?

Biology
1 answer:
mihalych1998 [28]3 years ago
6 0

a). Calcium ion and ATP

Explanation:

The excitation and contraction of the muscles takes place by Action potential  creation.

The muscle contraction is initiated when calcium ions binds to troponin. The binding of calcium with protein complex troponin changes the configuraton to  make actin sites active for ATP binding. This binding causes myosin to reach the state of high energy ( excitation), in which myosin head gets detach from the active site.

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The nurse is caring for a patient admitted to the psychiatric unit with a diagnosis of schizophrenia. the patient has not bathed
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Answer:

ADP

Explanation:

Your question: The release of one phosphate group from ATP powers the reactants in the cell which phosphate is the one that is released from ATP

My answer: ADP

Why is my answer correct?

If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell.

Hope this helps! :)

6 0
2 years ago
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