Describe how proteins enter the endomembrane system through the endoplasmic reticulum, are next sorted by the Golgi Apparatus and how they are targeted and delivered to their final destination (lysosomes, plasma membrane, E.R., etc.)
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.
Describe how proteins enter the endomembrane system through the endoplasmic reticulum, are next sorted by the Golgi Apparatus and how they are targeted and delivered to their final destination (lysosomes, plasma membrane, E.R., etc.)
In the ER, proteins fold into their correct shapes, and will conjointly get sugar groups connected to them. Most proteins are then transported to the Golgi apparatus in membrane vesicles. Some proteins, however, got to keep within the ER and do their jobs there. These proteins have amino acid tags that guarantee they're shipped back to the ER if they "escape" into the Golgi.
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