Transcription: Cells in the human body have many different forms and serve varied functions. Virtually all, however, have many characteristics in common with each other and with any other eukaryotic cell, the type of cell found in all animals and plants. All have a bilayered cell membrane made of a fatty substance. Protein molecules float in the cell membrane. Some are ion channels which allow specific molecules in and out All cells have organelles, distinct structures that perform the functions of the cell. These include the nucleus, where the DNA and regulatory proteins control cell operation. The endoplas ...
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