Summary

It is not known for certain when the first cell appeared on Earth and in what way it originated. The appearance of the first cells should have been preceded by the accumulation of organic substances in the medium and the appearance of a certain form of prebiotic metabolism.

Protocells contained at least two essential elements: hereditary information in the form of molecules capable of self-replication, and a certain kind of membrane that protected the internal contents of the first cells from the environment.

It is also not known from which substances the membranes of the first cells were built, however, it was likely that they could be simple amphiphilic compounds, such as salts of fatty acids that can self-organize into liposomes, which can undergo growth and division cycles. fatty acids were synthesized in many experiments on the reproduction of prebiotic conditions, they were also found in meteorites.

It is believed that the first living cells were heterotrophic

Transplantation - in medicine, a transplant of an organ or tissue, for example, a kidney, heart, liver, lung, bone marrow, hematopoietic stem cells .

Distinguish between experimental and clinical transplantation. Experimental transplantation is necessary as a preclinical stage in the development of all biological, surgical and organizational problems of transplantation of various organs or tissues. In the experiment, transplantation of almost all tissues and organs is carried out.

Experimental transplantation is also extremely important for the development of new drugs (cyclosporine) that contribute to the normal adaptation of transplanted genetically distinct organs and tissues .

And in conclusion I think transplant cells is more difficult than transplant organs but its actually had a pros like a 80% lucky operation.