Choose all the right sentences: * Proteins are needed for many cellular functions such as damage cells Nuclear pores prevent materials to move between the cytosol and the nucleus Ribosomes serves as the site of biological protein synthesis The nucleolus and chromosomes are surrounded by nucleoplasm Nucleoplasm also supports the nucleus by helping to maintain its shape The nucleolus helps to synthesize ribosomes free ribosomes located on the surface of rough endoplasmic reticulum plasma membrane separates the contents of the nucleus from the cytoplasm
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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