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BioChap.2test

QuestionAnswer
atom smallest basic unit of matterq
element one particular type of atom
compound substance made of atoms of different elements bonded together in a certain ratio
ionic bond the electrial force between oppositly charged ions
covalent bond atoms share a pair of electrons
molecule 2 or more held together by covalent bonds
hydrogen bond attraction between a slightly positive hydrogen atom and a slightly negitive atom
solution mixture of substances that is the same throughout
solvent substance that is present in the greater anount and that dissolves another substance
solute substance which is dissolved
acid compound that releases pH
bases compounds that remove pH
monomer subunit which is complete molecule
polymer large molecule made of many monomers bonded together
carbohydrates molecules made of carbon, hydrogen, and oxygen also includes sugars and starches. are broken down for energy
fatty acid chains of carbon atoms bonded together by hydrogen atoms
protein polymer made of monomers called amino acids
amino acids molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
nucleic acids polymers that are made up of monomers called nucleotides. the 2 main are DNA and RNA
chemical reactions change substances into different substancesby breaking and forming chemical bonds
reactants substances changed during a chemical reaction
products substances made by a chemical reaction
bond energy amount of energy that will break a bond
equilibrium reached when both the reactants and products are made at the same time
activation energy amount of energy that needs to be absorbed for a chemical reaction to start
excothermic reaction that releases more energy than it absorbs
endothermic reaction that releases less energy than it absorbs
catalyst substance that decreases the activation energy needed to start a chemical reaction, also increases the rate of chemical reaction
enzymes catalyst for chemical reactions in living things, also envolved in every porcess of life
substrates specific reactants that an enzyme acts on are called this
if a bond is strained or stretched then it becomes..... weaker
Created by: HanKaiLam
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