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TermDefinition
cell theory states that all living things are made of one or more cells, the cell is the smallest unit of life, and all new cells come from preexisting cells
macromolecule these substances form by joining many small molecules together
nucleic acids are macromolecules that form when long chains of molecules called nucleotides join together
proteins are long chains of amino acid molecules
lipid is a large macromolecule that does not dissolve in water
carbohydrates one sugar molecule, two sugar molecules, or a long chain of sugar molecules make up carbohydrates
cell membrane is a flexible covering that protects the inside of a cell from the environment outside a cell
cell wall is a stiff structure outside the cell membrane
cytoplasm a fluid inside a cell that contains salts and other molecules
cytoskeleton is a network of threadlike proteins that are joined together
organelles which have specialized functions; most organelles are surrounded by membranes
nucleus is the part of a eukaryotic cell that directs cell activities and contains genetic information stored in DNA
chloroplasts are membrane-bound organelles that use light energy and make food--a sugar called glucose--from water and carbon dioxide in a process know as photosynthesis
Created by: grupeabi2506