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33 Cards in this Set
- Front
- Back
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Atom
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Smallest particle of matter.
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Element
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Substance made of only one kind of atom.
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Proton
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+ found in the nucleus
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Neutron
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Neutral found in the nucleus
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O
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Oxygen
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H
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Hydrogen
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N
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Nitrogen
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S
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Sulfer
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Molecules
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Any 2 or more atoms BONDED together.
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Covalent Bonds
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Chemical bonds between atoms when electrons are shared.
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Ionic Bonds
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Chemical bonds between atoms with + and - charges.
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Mixture
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Substances mixed but not bonded together.
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Solutions
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A mixture when one substance surrounds another.
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Suspensions
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a solution where things seperate out of the solution if it is not disturbed.
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Organic Compounds
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molecules containing C
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P
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Phosphorus
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Suspensions
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WH things seperate out of a solution
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Organic Compounds
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molecules containing C
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electron
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negative charge and it is found circling the nucleus of an atom
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Carbohydrates
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an organic molecule
made of long branched chains stores and releases energy EX: starch, sugar, cellulose |
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Lipids
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an organic molecule made of long chains that insulates, makes protective coatings and stores energy
EX: fats and oils |
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Proteins
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an organic compound that is made of amino acids, has many different shapes and gives the cell and many organs sturcture - Proteins are also hormones and enzymes
EX: muscles, growth hormones EX |
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Nucleic acids
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an organic compound that is a long chain of molecules that store all the information the cll needs
EX: DNA |
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Enzymes
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proteins that are produced by the body that control chemical reactions tha happen in cells
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Cell membrane
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a barrier that surrounds the cell and controles what goes in and out
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selective permeability
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the ability of the cell membrane to control what goes in and out of the cell
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diffusion
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the movement of any substance from an area of higher concentration to an area of lower concentration
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osmosis
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the movement of WATER from an area of higher concentration to an area of lower concentration
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passive transport
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getting things into or out of the cell without the cell using any energy
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active transport
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using energy to get things into or out of the cell
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endocytosis
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when the cell membrane surrounds materials that are outside the cell and brings them into the cell
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exocytosis
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when the cell moves materials to the cell membrane and releases them out of the cell
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What are the 4 types of organic molecules?
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Lipids
Carbohydrates Proteins Nucleic acids |
