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chapter 2 bio test

the chemistry of life

QuestionAnswer
how are all isotopes of an element similar? They have the same chemical properties and # of protons and electrons
how are isotopes of an element different? They have different number of neutrons in the nuclei
what are the two types of chemical bonds? ionic and covalent
why are water molecules polar? oxygen and hydrogen electrons are shared unequally
what is cohesion? attraction btwn molecules of the same substance
what is adhesion attraction btwn molecules of different substances
Water is the universal...? solvent
solute substance that is dissolved
solvent the substance that dissolves the solute
What gives carbon the ability to form chains that are almost unlimited in length? carbon can bond with other carbon atoms
what is a monomer? small individual molecules that connect to make up a polymer
What is a polymer? a large molecule composed of repeating individual molecules called monomers
what is (are) the name of the substance(s) that go into a reaction? rectants
what is (are) the name of the substance(s) that are created during a reaction ? products
what is activation energy? energy needed to start a reaction
how do enzymes speed up reactions in the body? speed up chemicals reactions that lower activation energies
What is the name of the location on the enzyme where the reaction takes place? active site
what binds to the active site? substrate
what are three things that have effects on enzymes? cells,temperature and pH ranges
Created by: anniemurski
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