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Organization of Chemicals of Life. Level of Organization. Examples. Explanation. All living things have a structure that is based on specific organization of materials (chemicals). Atom. smallest particle of an element having the same physical and chemical properties.

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Organization of Chemicals of Life

Level of Organization

Examples

Explanation

All living things have a structure that is based on specific organization of materials (chemicals).

Atom

smallest particle of an element having the same physical and chemical properties

oxygen, nitrogen, gold, aluminum, copper

Molecule

Smallest particle of compound--when two or more atoms are bonded together

water, carbon dioxide, salt

Macromolecule

Organic compounds: proteins, lipids (fats), carbohydrates, nucleic acids

when many molecules are bonded together to form large (gigantic!) molecules

Cell Parts

Cell linings (membranes), walls, organelles (small parts)

proteins, lipids, carbohydrates form cell structures