Everything about Cytoplasm totally explained
Cytoplasm is a gelatinous, semi-transparent fluid that fills much of the volume of
cells.
Eukaryotic cells contain
organelles, such as
mitochondria, that are filled with liquid that's kept separate from the cytoplasm by
cell membranes.
Constituents
The cytoplasm has three major elements; the
cytosol,
organelles and
inclusions. The
cytosol is the translucent fluid in which the other cytoplasmic elements are suspended. The cytoplasm holds organelles and protects them, such as the vacuole, endoplasmic reticulum, etc. Cytosol makes up about 70% of the cell and is composed of water, salts and organic molecules. The
cytoskeleton, various
proteins,
ribosomes and
enzymes that are necessary for the cell to catalyze reactions are also found throughout the cytosol. The inner, granular and more fluid portion of the cytoplasm is referred to as endoplasm.
The
organelles are the metabolic machinery of the cell and are like little organs themselves. Some major organelles that are suspended in the
cytosol are the
mitochondria, the
endoplasmic reticulum, the
Golgi apparatus,
lysosomes, and in plant cells
chloroplasts.
The
inclusions are chemical substances that store nutrients, secretory products and pigment granules.
Function
The cytoplasm is the site where most cellular activities are done. The functions for cell expansion, growth and replication are carried out in the cytoplasm of the cell. The cytosol has enzymes that take molecules and break them down, so that the individual organelles can use them as they need to. The cytosol also contains the cytoskeleton which gives the cell its shape and can help in the movement of the cell.
Footnotes
It is the gel like substance inside the cell membrane,contains a large amount of water. Most of the cells life takes place inside the cytoplasm.
Further Information
Get more info on 'Cytoplasm'.
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