00:01
Okay, so let's answer now the question.
00:02
So we have here a phagocytic cell, and then we have here a living cell, and a dead cell.
00:19
Okay? so how will this phagocytic cell recognize that this is the dead cell? because basically the phagocytic cell will really engulf the dead cell for it to be digested.
00:36
Okay, so our answer here is because of the molecule called phosphatidil serene.
00:55
So the phosphatidil phosphatidil serine is exposed only on the extracellular surface of the plasma membrane of the dying cells.
01:06
So these dying cells have this phosphatidil serine on the cellular surface, extracellular surface, and this will be recognized by the phagocytic cell.
01:20
Therefore, the phagocytic cell will engulf the dead cell.
01:24
Okay, so the phosphatidilcerine is a phospholipid, and it is one of the component of the plasma membrane.
01:31
It is present in the inner side.
01:33
Normally, in the living organism, a living cell, the phosphatidil serine is present on the inner...