Which of the following is correct? Answer not listed. Transport protein helps identify other cells. Signal transduction proteins helps transport proteins across the plasma membrane. Enzymatic proteins help cells transfer materials and communicate with one another
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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Which of the following is correct?
Answer not listed.
Transport protein helps identify other cells.
Signal transduction proteins helps transport proteins across the plasma membrane.
Enzymatic proteins help cells transfer materials and communicate with one another
The plasma membrane is a dynamic structure that acts as a selective barrier by allowing some molecules to pass through it while restricting other molecules. It consists of carbohydrates, phospholipids, and proteins (membrane proteins). These membrane proteins are extrinsic and intrinsic proteins responsible for most of the dynamic processes carried out by the membrane. These are classified as structural proteins, catalytic proteins, and transport proteins.
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