17 Endomembrane organelles Complete the following statements to examine components of the endomembrane system by selecting the appropriate term from each dropdown list. A. The (Click to select) helps produce lipids. B. The (Click to select) is studded with (Click to select) and helps produce proteins. C. Once lipids and proteins are produced, (Click to select) bud off from the endoplasmic reticulum and transport the molecules. D. Transport vesicles move the molecules to the [(Click to select) where they are sorted and packaged. E. Sorted and packaged lipids and proteins can exit the Golgi apparatus in [(Click to select), which carry the molecules to the plasma membrane.
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.
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