A Skeletal Muscle Deprived of Adequate ATP Supplies Will

Question

A skeletal muscle deprived of adequate ATP supplies will
A)immediately relax.
B)release all actin-myosin bonds.
C)enter a state where actin and myosin are unable to separate.
D)fire many more action potentials than usual and enter a state of "rigour."
E)sequester all free calcium ions into the sarcoplasmic reticulum.

Accepted Answer

When a skeletal muscle is deprived of adequate ATP supplies, it enters a state where actin and myosin cannot separate. This occurs because ATP is needed to break the actin-myosin bond that allows for muscle contraction. Without ATP, the bond remains intact and the muscle remains contracted, leading to muscle rigidity. This state is known as rigor mortis and occurs after death when the body's ATP supply has been used up.