The first component of the first cell might have been a simple membrane. The first membranes might have been formed somewhat like this, bubbles of lipids in an environment that provided them with energy, subjected to a natural selection on their longevity.
See: http://en.wikipedia.org/wiki/Evolution_of_cells#The_first_cells
"The second law of thermodynamics requires that the universe move in a direction in which disorder (or entropy) increases, yet life is distinguished by its great degree of organization. Therefore, a boundary is needed to separate life processes from non-living matter. The cell membrane is the only cellular structure that is found in all of the cells of all of the organisms on Earth."
http://en.wikipedia.org/wiki/Protocell#Selectivity_for_compartmentalization
Further readings:
http://en.wikipedia.org/wiki/Abiogenesis
http://en.wikipedia.org/wiki/Last_universal_ancestor
Note that: The first lines are entirely my creation and have not been reviewed by anyone else, so I advise to do some further readings and confirm it yourselves before taking them as a fact.
See: http://en.wikipedia.org/wiki/Evolution_of_cells#The_first_cells
"The second law of thermodynamics requires that the universe move in a direction in which disorder (or entropy) increases, yet life is distinguished by its great degree of organization. Therefore, a boundary is needed to separate life processes from non-living matter. The cell membrane is the only cellular structure that is found in all of the cells of all of the organisms on Earth."
http://en.wikipedia.org/wiki/Protocell#Selectivity_for_compartmentalization
Further readings:
http://en.wikipedia.org/wiki/Abiogenesis
http://en.wikipedia.org/wiki/Last_universal_ancestor
Note that: The first lines are entirely my creation and have not been reviewed by anyone else, so I advise to do some further readings and confirm it yourselves before taking them as a fact.
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