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25 Cards in this Set

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  • Back
Biosynthesis
The process by which living organisms produce molecules (146)
Catalyst
A substance that alters the speed of a chemical reacion but does not get used up in the process (145)
Chemical Change
A change that alters the makeup of the elements or molecules of a substance (136)
Concentration
A measurement of how much substance exists within a ceratin volume (140)
Dehydration Reaction
A chemical reaction in which molecules combine by ejecting water (149)
Diffusion
The random motin of molecules from an area of high concentration to an area of low concentration (140)
Disaccharides
Carbohydrates that are made up of two monosaccharides (149)
Element
All atoms that contain the same number of protons (132)
Hydrophobic
Lacking an affinity to water (153)
Hydrogen Bond
A strong attraction between hydrogen atoms and certain other atoms
(usually oxygen or nitrogen) in specific molecules (160)
Hydrolysis
Breaking down complex molecules by the chemical addition of water (150)
Isomers
Two different molecules that have the same chemical formula (148)
Matter
Anything that has mass and takes up space (129)
Model
An explanation or representation of something that cannot be seen (130)
Molecules
Chemicals that result from atoms linking together (134)
Monosaccharides
Simple carbohydrates that contain three to ten carbon atoms (149)
Organic Molecule
A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfur, and/or phosphorous (146)
Osmosis
The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration (141)
Peptide Bond
A bond that links amino acids together in a protein (154)
Phase
One of three forms - solid liquid or gas - which every substance is capable of attaining. (137)
Physical Change
A change that affects tha appearance but not the chemical makeup of a substance (136)
Polysaccharides
Carbohydrates that are made up of more than two monosaccharides (149)
Saturated Fat
A lipid made from fatty acids which have no double bonds between carbon atoms (154)
Semipermeable membrane
A membrane that allows some molecules to pass through but does not allow other molecules to pass through (141)
Unsaturated Fat
A lipid made from fatty acids that have at least one double bond between carbon atoms (154)