1. Rhythm generators (SA node)
2. Conductive cells (node cells)
3. Contractile cells (myocardial cells)
Answer:
Hydrophobic part
Explanation:
A protein is made up of amino acids. Some amino acids such as serine and threonine are polar and hydrophilic in nature as they have polar side chains. The other amino acids such as alanine and proline are non-polar as they have nonpolar side chains.
The polar amino acids of a polypeptide chain are folded towards the inside of the protein to avoid any interaction with the surrounding watery medium. On the other hand, the polar and charged amino acids are oriented towards the surface of a folded protein. This arrangement makes the proteins stable.
Answer:
Explanation:
Hernias are cuts in the muscles that makes the body bulge out. It can occur in the stomach region where intestine lies leading to its bulging out. Hernias has been traced back to early years and until recent it still exist.
Hernia are mostly common in man with little traces in woman. Some hernia are due to some congenital defect and could be found in new born. It is characterized by heart burn,cough, pressure on the affected part.
Hernia are said to be genetic, and this has lead to the continuity in human nature and not its reduction. Hernia have claim some life's especially the severe ones if not properly treated, some people have died in the theater room while be operate upon while some people are in sever pain of the disease. Hernia as at 2015 is present in 18.5million people and has caused death of about 59,800.
Ribosomes, cytoplasm, cell membrane
