The origin of the prokaryotic cell is a very small living organism. Most cells are relatively small in size. With its very small size, so it will not be visible only to the naked eye.
We recommend using a tool that is a microscope. Along with the development of technology from existing microscopes. Discovered two types of cell structures, namely prokaryotic cells and eukaryotic cells.
Launching Wikipedia, prokaryotes are living things that do not have a cell nucleus membrane. Prokaryotes are divided into two domains, namely bacteria and archaea.
This is the Origin of Prokaryotic Cells
According to evolutionists, millions of years ago organic monomers existed. As well as water, hydrogen gas, and ammonia gas. In addition, methane gas which combines into organic polymers or proteinoid.
later proteinoid will become protobion. Protobion This is the basic material for forming ancient cells or called progenot. Every living thing alive today is the result of the development of this ancient cell.
Progenot or ancient cells develop. So that it becomes a group of ancient prokaryotic cells like Archaebacteria. Archaebacteria is a group of bacteria that live in quite extreme conditions.
The group of cells has a cell wall with various types of proteins. In addition, photosynthetic pigments in the form of bacteriodopsin and can also make their own ATP. Prokaryotic organisms emerged through a very long process.
The origin of prokaryotic cells starts from non-living molecules that are polymers. Begins to form very complex molecular compounds. This can happen because the conditions on earth look different from today. The oxygen gas level is still low, there is a lot of lightning, and the carbon dioxide level is still high.
There is volcanic activity, meteor strikes, and very high UV radiation. When compared with the current state of the earth. So that the conditions of the earth’s environment in the past could allow life to form.
However, there is still much debate about the origin of life on earth. Protobion seems to be the basic material for forming ancient cells or so-called progenot. Progenot is the universal origin of all cells today.
The origin of the progenot whose development became a collection of ancient types of prokaryotic cells, for example Archaebacteria. Meanwhile, Archaebacteria are bacteria that are able to adapt to temperatures of 100°C. Even at high salt content and high acid conditions.
Characteristics of Prokaryotic Cells
Prokaryotic cells are organisms that can live from utilizing many of their energy sources. If than other living organisms. Prokaryotic organisms can indeed live in quite extreme habitats.
Like living in the sea with high salt content or hot springs. Prokaryotic organisms do not have a cell nucleus. In addition it has a relatively simple internal organization of cells.
Prokaryotes are divided into two major groups. This group is like almost all types of bacteria and archaea. The prokaryotic genome consists of a single, circular chromosome without organization (DNA).
Prokaryotic cells are generally very small in size. When compared to eukaryotic cells. The origin of each prokaryotic cell is a single cell, but will often appear in aggregate chains. In addition, in groups of cells that number in the hundreds.
The general structure of a prokaryotic cell is represented by bacteria from the outside to the inside. Like the cell wall, cytoplasm, cell membrane, mesosomes, nuclear material (DNA and RNA), also ribosomes. Has no other organelles other than ribosomes.
No mitochondria, endoplasmic reticulum (ER), and Golgi bodies were found. But only found the presence of ribosomes. DNA or gene material is located in the cytoplasm which has a round ring shape.
Parts of the cytoplasm and genetic material are mixed. So that the core material is not limited by the nuclear membrane. Only collected in an area called nucleoid.
These cells are very small organisms ranging in size from 1-5 micrometers. Do not have nucleus, so it does not have a nuclear membrane. The discovery of DNA on a single chromosome which is usually circular in the cytoplasm.
The organization of this type of prokaryotic cell is generally unicellular. In reproduction by binary fission.
Regarding the origin of prokaryotic cells from progenot or ancient cells. Every living thing alive today is the result of the development of this ancient cell. (R10/HR Online)