5- The function of carbohydrates in the cell membrane is primarily: a) Providing structural integrity b) Assisting in the diffusion of water-soluble substances c) Serving as receptor sites for hormones d) Forming glycoproteins 6- Which of the following cellular structures is responsible for producing energy? a) Nucleus b) Golgi apparatus c) Mitochondria d) Endoplasmic reticulum. 7- The region within the cell that surrounds the nucleus is called: a) Cell membrane b) Cytoplasm c) Golgi apparatus d) Endoplasmic reticulum 8. Which of the following cellular structures is responsible for
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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