Answer: The calcium ion binds to troponin, and this slides the tropomyosin rods away from the binding sites.
Explanation:
Contraction and relaxation of muscle cells brings about movements of the body. The contractile myofilament called sarcomeres are bounded at each end by a dense stripe called the Z - line, to which the myosin fibres are attached, and lying in the middle of the sarcomere are the actin filaments, overlapping with the myosin.
When action potential spreads from the nerve along the sarcolemma (muscle cell membrane), it penetrates deep into the muscle cell through the sarcoplasm (cytoplasm of muscle cell), and releases CALCIUM from the intracellular stores.CALCIUM triggers the binding of myosin to the actin filament next to it forming CROSS BRIDGES.
For this to occur, ACTIN BINDING SITE has to be made available. TROPOMYOSIN is a protein that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin. The first step in the process of contraction is for calcium ions to bind to troponin so that tropomyosin can slide away from the binding sites on the actin strands.
Answer:
Is it likely that his body was moved after death? The answer is NO
Why or why not?
This is due to postmortem staining seen on his back which would have been observed on other parts of the body if the body was moved after death
Explanation:
Livor mortis: is the stage where the heart stops pumping blood through the circulatory system causing blood accumulation at the lowest point of the body. It's also called postmortem stain.
It helps in judging the time of death for a body, the location and position of the body if it's at the spot.
Jet streams are fast moving air currents much like how a river is a fast moving water current so the answer is jet streams.
Answer:
There is no correct answer.
Explanation:
Different circumstances regarding how you operate your company and what kind it is.
Also, with sole proprietorships, it may be hard to manage liabilities, as the owner is <em>personally</em><em> </em>responsible for any liabilities. It is also hard to procure funding for your company.
However, it is simple to incorporate and allows for high flexibility, which may be what you mean by "easiest type ... to start".
