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The main factors to maintain cell volume and morphology are
1. Cell wall is a structure that protects the internal structure of cells and maintains the morphology of cells. Cell wall is a thick, tough and slightly elastic structure located outside the cell membrane. Its components are mucus compounds, and some species have a capsule composed of polysaccharides outside the wall, which plays a protective role.

Second, the structure of maintaining cell morphology The structure of plant cells includes cell wall, cell membrane, cytoplasm, nucleus, vacuole, chloroplast and mitochondria.

Third, different structures have different functions. Among them, the role of cell wall is to protect and support cells and maintain their normal morphology; The function of cell membrane is to control the entry and exit of substances, so that useful substances are not easy to seep out of cells and harmful substances are not easy to enter cells; Cytoplasm can flow continuously, and its flow accelerates the material exchange between cells and the outside world; The nucleus contains genetic material and can transmit genetic information.