Brief essay about plama membrame and its functions
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The plasma membrane is the boundary between the cell and its environment. It regulates what enters and exits the cell. Cells must maintain an appropriate amount of molecules to function inside them. They must also have a way to keep things out or to allow things to enter. This is the job of the plasma membrane. The plasma membrane is like the guard at a gated community. The guard must inspect those who enter and those who leave to make sure that only the people and things needed in the community are there.
To maintain the physical integrity of the cell – that is to mechanically enclose the contents of the cell, and also
To control the movement of particles e.g. ions or molecules, into and out of the cell.
The cell membrane maintains the physical integrity of the cell. It’s most obvious in the cases of animal cells (because they don’t have cell walls) that the cell membrane holds the cell together by enclosing the cytoplasm and organelles within it.
The cell membrane forms a barrier between the inside of the cell and the environment outside the cell – enclosing cytoplasm and any organelles within the cell, and enabling different chemical environments to exist on each side of the cell membrane.
The cell membrane physically separates the intracellular components (e.g. organelles in eukaryotic cells) from the extracellular environment. The cell membrane protects the cell from some harmful chemicals in its external environment.
It also protects the cell from loss of useful biological macromolecules held within the cell by its plasma membrane.
To maintain the physical integrity of the cell – that is to mechanically enclose the contents of the cell, and also
To control the movement of particles e.g. ions or molecules, into and out of the cell.
The cell membrane maintains the physical integrity of the cell. It’s most obvious in the cases of animal cells (because they don’t have cell walls) that the cell membrane holds the cell together by enclosing the cytoplasm and organelles within it.
The cell membrane forms a barrier between the inside of the cell and the environment outside the cell – enclosing cytoplasm and any organelles within the cell, and enabling different chemical environments to exist on each side of the cell membrane.
The cell membrane physically separates the intracellular components (e.g. organelles in eukaryotic cells) from the extracellular environment. The cell membrane protects the cell from some harmful chemicals in its external environment.
It also protects the cell from loss of useful biological macromolecules held within the cell by its plasma membrane.
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Plasma membrane is a membrane found in both plant and animal cells.It is a selectively permeable membrane which only allows water and minerals to pass through it.
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