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25 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Matter
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Anything that has mass and takes up space.
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Mass and space.
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Model
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An explanation or representation of something that cannot be seen.
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Representation
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Element
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A collection of atoms that all have the same number of protons.
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Protons
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Molecules
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Chemicals that result from atoms linking together.
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Linking
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Physical Change
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A change that affects the appearance but not the chemical makeup of a substance.
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Appearance
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Chemical Change
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A change that alters the makeup of the elements or molecules of a substance.
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Makeup
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Phase
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One of three forms-solid, liquid, or gas-which every substance is capable of attaining.
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Three Forms
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Diffusion
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The random motion of molecules from an area of high concentration to an area of low concentration.
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Concentration
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Concentration
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A measurement of how much solute exists within a certain volume of solvent.
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Volume
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Semipermeable Membrane
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A membrane that allows some molecules to pass through but does not allow other molecules to pass through.
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Pass
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Osmosis
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The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration.
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Travel
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Catalyst |
A substance that alters the speed of a chemical reaction but is not used up in the process. |
Alter |
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Organic Molecules |
A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfur, and/or phosphorus. |
Contains |
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Biosynthesis |
The process by which living organisms produce larger molecules from smaller ones. |
Produce |
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Isomers |
Two different molecules that have the same chemical formula. |
Same |
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Monosaccharides |
Simple carbohydrates that contain 3 to 10 carbon atoms. |
Carbohydrates |
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Disaccharides |
Carbohydrates that are made up of two monosaccharides. |
Two |
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Polysaccharides |
Carbohydrates that are made up of more than two monosaccharides. |
Monosaccharides |
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Dehydration Reaction |
A chemical reaction in which molecules combine by removing water. |
Removing |
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Hydrolysis |
Breaking down complex molecules by the chemical addition of water. |
Chemical |
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Hydrophobic |
Lacking any affinity to water. |
Lacking |
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Saturated fat |
A lipid made from fatty acids that have no double bonds between carbon atoms |
Double bonds |
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Unsaturated fat |
A lipid made from fatty acids that have at least one double bond between carbon atoms. |
One double bond |
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Peptide bond |
A bond that links amino acids together in a protein. |
Together |
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Hydrogen bond |
A strong attraction between hydrogen atoms and certain other atoms (usually oxygen or nitrogen) in specific molecules. |
Attraction |
