Answer and Explanation:
In rest, attraction strengths between myosin and actin filaments are inhibited by the tropomyosin. When the muscle fiber membrane depolarizes, the action potential caused by this depolarization enters the t-tubules depolarizing the inner portion of the muscle fiber. This activates calcium channels in the T tubules membrane and releases calcium into the sarcolemma. At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to the troponin C, the troponin T alters the tropomyosin by moving it and then unblocks the binding sites. Myosin heads bind to the uncovered actin-binding sites forming cross-bridges, and while doing it ATP is transformed into ADP and inorganic phosphate which is released. Myofilaments slide impulsed by chemical energy collected in myosin heads, producing a power stroke. The power stroke initiates when the myosin cross-bridge binds to actin. As they slide, ADP molecules are released. A new ATP links to myosin heads and breaks the bindings to the actin filament. Then ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, which starts a new binding cycle to actin. Z-bands are then pulled toward each other, thus shortening the sarcomere and the I-band, and producing muscle fiber contraction.
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells.
- thus the answer is <u>mitosis</u>
The resulting compounds of glycolysis can undergo other Adenosine triphosphate (ATP) to produce more ATP in the cell.
<h3>
What is glycolysis?</h3>
Glycolysis is a process in which glucose is partially broken down by cells in enzyme reactions that do not need oxygen.
Glycolysis is one method that cells use to produce energy.
<h3>Resulting compounds of glycolysis</h3>
During glycolysis, glucose ultimately breaks down into pyruvate and energy.
Thus, the resulting compounds of glycolysis can undergo other Adenosine triphosphate (ATP) to produce more ATP in the cell.
Learn more about glycolysis here: brainly.com/question/1966268
#SPJ1