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