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Chemistry of Life

Chapter 2

QuestionAnswer
Attraction between molecules of the same substance Cohesion
Attraction between molecules of different substances Adhesion
Type of mixture where all components are evenly distributed throughout the solution Solution
Substance that is being dissolved Solute
Substance in which the solute dissolves Solution
Mixtures of water and nondissolved material Suspensions
Contains higher concentrations of H+ ions than pure water and has pH values below 7 Acid
Contains lower concentrations of H+ ions than pure water and has pH values above 7 Base
Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH Buffers
Single sugar molecules (simple sugar: glucose) Monosaccharide
Large macromolecule formed from monosaccharides (complex sugar: glycogen, starch) Polysaccharide
Main source of energy. (ex: Starch, Glycogen, Glucose) Carbohydrates
Used to store energy, are important parts of biological membranes, and waterproof coverings Lipids
Store and transmit hereditary or genetic information Nucleic Acids
Consists of: 5-carbon sugar, a phosphate group, and nitrogenous base Nucleotide
Control the rate of reaction and regulate cellular processes Protein
Building blocks of proteins Amino acids
Process that changes reactants (substrates) into a product by breaking chemical bonds Chemical Reaction
Energy that is needed to get a reaciton started Activation energy
Proteins that act as biological catalyst Enzyme
The reactants of enzyme-catalyzed reactions Substates
Created by: megan conner
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