If Cell Membrane Did Not Exist There is No Life on Earth
The most theory adopted in the modern biology is that living organisms comprises of two basic categories cell, that is prokaryotic cell or single cell, such as bacteria, and eukaryotic cell or multi-cellular, which have more complex interior. As the more complex cell, eukaryotic has various structures (organelles) in the cell. One of the most fundamental structures is the plasma membrane. In regard to the crucial roles of the plasma membrane, which is a part of the cell as the basic unit of life, will there be a life on earth if there is no cell membrane? The following components are going to be discussed in more detail; firstly, interconnecting between the structure and the function of the cell membrane, next the roles of the cell membrane plasma in cells, finally the relation between cell membrane surrounding the cell and other membrane in the cell.All membranes in the eukaryotes cell consist of a double layer (bilayer) of phospholipids where attached several proteins and cholesterol. In addition the phospholipids have both polar hydrophilic head and a pair of non-polar hydrophobic tails, hence the hydrogen bonds can form between water and the phospholipids head. The hydrophobic interactions cause the phospholipids to hide i
Another function of the membrane cell is to communicate with other cell and receiving signals, for example, in animals is called ‘gap junctions’ where provide a link between two cells in order to deliver the small molecules, such as amino acid and sugar to other cells. In plants the communicating junction is known as ‘plasmodemata’, this is similar to the gap junctions of animals, with connections between the endoplasmic reticulum. Apparently in cell most of the organelles are surrounded by membranes, for instances, Mithocondrion which obviously surrounded by two membranes; the inner and outer mitochondrial membranes. Certain amount of hydrogen molecules that enter through the plasma membrane, are utilised in order to form the high-energy compound the adenosine triphosphate (ATP). Chloroplast is another examples, which prominently has three membranes, i.e. the outer membrane, inter-membrane space and the inner membrane and have a role in photosynthesis, which involved the Carbon dioxide and water, hence it requires a certain amount of these molecules that pass through the plasma membrane.
Some topics in this essay:
,
Na+ K+,
ATP Chloroplast,
plasma membrane,
cell membrane,
movement molecules,
membrane cell,
passive process,
amino acids,
transport mechanism,
hydrophobic tails,
enter leave cell,
embedded plasma membrane,
cell receiving,
communicate cell,
passive process active,
polar hydrophilic head,
process active process,
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Approximate Word count = 936
Approximate Pages = 4 (250 words per page double spaced)
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