what is the role of atp in muscle contraction and the significance of stiffness in someone...

what is the role of atp in muscle contraction and the significance of stiffness in someone that is deceased?

Expert Solution

Ans:-

Role of the atp in muscle contraction is as follows:-

ATP binds to myosin causing it to change position and attach to actin and pull that causes muscle contraction . This allows muscle to move.

Or

ATP is responsible for pulling back the myosin head which is ready for another cycle. When ATP binds to the myosin head , it causes cross bridge between actin and myosin to detach. ATP then provides the energy to pull the myosin back by hydrolysing to ADP +Pi and muscle contraction occurs.

Significant of stiffness in someone that is deceased is as follows:-

Stiffness in the deceased is called rigor mortis in which body becomes stiff after death due to the loss of ATP from the body's muscles .

As we know that the ATP is the substance that allows the energy to flow to the muscles and help them to work and without this muscle become stiff and inflexible .

Significant of rigor mortis:-

- With the help of rigor mortis we can find out the timing of death i.e. about what time death is occured.

- It can help us to tell whether body has been moved after death or not.

Sydney Mullin answered 1 year ago

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