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Anatomy
Levels of Organization
Term | Definition |
---|---|
Levels of Organization | Subatomic particles molecule macromolecule organelle cell tissue organ organ system organism |
Subatomic Particles | protons, neutrons and electrons that make up cells |
Atom | tiny particles that make up chemicals (hydrogen and carbon) |
Molecule | particles consisting of atoms joined together |
Macromolecule | large particles consisting of molecules |
Organelle | functional part of a cell |
Cell | basic unit of structure and functions |
Tissue | layer or mass of cells with specific function |
Organ | group of different tissues with a function |
Organ System | group of organs with common function |
Organism | composed of organ systems interaction (human) |