Basic Parts of Cell and their functions

1. The plasma membrane: serves as a diffusion barrier between the cell and its environment. All living cells have plasma membranes. And it also controls the movements of various substances and objects into and out of the cell.
2. The cell wall: It very different from the plasma membrane. One of the primary functions of the cell wall is physical support. Some kinds of bacterial cell walls also have other functions.
3. The capsule: Capsule is not found in all prokaryotic cells. The capsule is composed of rather amorphous polysaccharide material similar to mucous.
4. The nucleoid: which is an essentially imaginary “structure.” This is the central region of the cell, where the DNA is largely located.
5. The naked circular DNA: which is characteristic of prokaryotic cells, mitochondria and chloroplasts. This DNA molecule, which is not properly called a chromosome, carries all of the essential genes for the cell.
6. Ribosomes: are another essential component for any living cell. Each cell contains many, many ribosomes. The function of a ribosome is to make protein, following instructions sent from the DNA’s genes.
7. Cytoplasm: It is the fluid substance that fills the interior of the cell. This analogy seeks to honor the complexity of cytoplasm, which is mostly water, but contains a large assortment of molecular and structural components.
8. Mesosomes: These are rosette-like clusters of folds in the plasma membrane, protruding toward the interior of the cell. A key part of this process requires a lot of membrane surface, and mesosomes greatly increase the membrane surface of the cell.
9. Thylakoids: These are long, strap-like invaginations of the plasma membrane. Like aerobic respiration, photosynthesis contains a vital function which requires a lot of membrane surface, and the long, thin thylakoid surfaces provide that area.

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