According to the cross-bridge model of muscle contraction, the muscles stiffen after death because ATP cannot bind and directly release the myosin head from the actin filament.
<h3>What is myosin?</h3>
Myosin and actin are two essential proteins in muscle cells that interact during muscle contraction.
Adenosin Triphosphate (ATP) is a key high-energy molecule required during muscle contraction that binds to myosin and whose hydrolysis enables to produce movement.
In conclusion, according to the cross-bridge model of muscle contraction, the muscles stiffen after death because ATP cannot bind and directly release the myosin head from the actin filament.
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Answer:
B lymphocytes become cells that produce antibodies. Antibodies attach to a specific antigen and make it easier for the immune cells to destroy the antigen. T lymphocytes attack antigens directly and help control the immune response.
Explanation:
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