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Chapter 4 ME1160
Organization of the body
Term | Definition |
---|---|
Atom | smallest, basic chemical unit of an element |
Proton | |
Neutron | without any electrical charge |
Electron | a negatively charged particle that revolves around the nucleus of an atom |
Molecule | Chemical combination of 2 or more atoms that form a specific chemical compound |
Water | h20 |
Cells | basic building blocks for the various structures that together make up a human being |
Cell membrane | outer covering of cell |
Cytoplasm | substance between the cell membrane and the nuclear membrane |
Nucleus | central portion of the cell |