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.
What is the most likely pathway taken by a new protein synthesised by an endoplasmic reticulum in a cell?
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Proteins are composed of adjoining monomer units called amino acids via peptide linkages, these are the building blocks of the body and are required for healing and tissue repair, muscular strength as well provides energy to the body.
The synthesis of proteins takes place by special organelles called "ribosomes" in the Endoplasmic reticulum. These synthesized proteins then proceed via the Secretory pathway or the lysosomal pathway. Most proteins use secretory pathways from where they are directed to their target organs.
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