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a property of biological membranes that allow some substances to pass through while keeping others out
a protein located in the cell membrane that helps move specific substances in and out of the cell
fluid mosaic model
structural model of the plasma membrane where molecules are free to move sideways within a lipid bilayer
a network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement
a system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids
stack of membranes in the cell that modifies, sorts, and packages proteins from the endoplasmic reticulum into sacs called vesicles
An organelle that carries out cellular respiration, which produces the energy a cell needs to carry out its activities
organelle found in cells of plants and some other organisms that carries out photosynthesis, which captures the energy from sunlight and converts it into chemical energy
a rigid layer of nonliving material that surrounds the cells of plants and some other organisms and gives them support
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