Has an affinity for myosin binding sites in the absence of calcium.

Complete Question

has an affinity for myosin binding sites in the absence of calcium.

Tropomyosin

Explanation:

Tropomyosin is one of the protein that can be found in the muscles of the body. Tropomyosin is an integral and regulatory protein that is involved in the contraction of the muscles in the body and it prevents the unregulated contraction of the muscles.

In the absence of calcium ions, tropomyosin has an affinity to myosin binding sites. Tropomyosin attaches itself to muscle protein actin and prevents the formation of the cross bridge. This prevents myosin from binding or attaching itself to actin which then results to the prevention of the contraction(shortening and tightening) of the muscles of the body.

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation:

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.