![]() ![]() ![]() The structures shown here will seldom all be found in a single animal cell. This diversity arises mainly from the presence of different proteins and lipids in the membrane. The membranes of all cells have a fundamentally similar structure, but membrane function varies tremendously from one organism to another and even from one cell to another within a single organism. (For more information about genetics and DNA, see Chapter 19 "Nucleic Acids".) Everything between the cell membrane and the nuclear membrane-including intracellular fluids and various subcellular components such as the mitochondria and ribosomes-is called the cytoplasm Everything between the cell membrane and the nuclear membrane. Plant cells ( Figure 17.3 "An Idealized Plant Cell") and animal cells ( Figure 17.4 "An Idealized Animal Cell") contain a cell nucleus that is also surrounded by a membrane and holds the genetic information for the cell. Describe membrane components and how they are arranged.Īll living cells are surrounded by a cell membrane. ![]()
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