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regulates movement of materials in and out of cells, maintains cell shape and allows cells to communicate with each other
modifies, sorts and packages substances made by the cell and sends them to vacuoles, other organelles or out of the cell
double membrane surrounding the nucleus that controls what enters and leaves the nucleus
idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
network of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell movement
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