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.
Is the organelle that the line is pointing to found in prokaryotes, eukaryotes, or all cells?
A cell refers to the fundamental functional and structural unit of life. It is the shortest unit that can comprehend life. The cells are known as building blocks of living organisms as they form tissues and other higher levels of organization that forms multicellular organisms such as plants and animals. Cells are characterized by cytoplasm that contains biomolecules such as nucleic acids and proteins. Cells can be divided into two main types; eukaryotic and prokaryotic.
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