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BioChemistry
Review
18
Biology
9th Grade
01/21/2012

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Term
dependent variable
Definition
results from changes to independent variable
Term
independent variable
Definition
only factor that can change at a time
Term
experimental design
Definition
constant, in and depenedent variable
Term
isotopes
Definition
atoms with different numbers of neutrons
Term
ionic bonds
Definition
electrical attraction between 2 appositively atoms or groups of atoms
Term
ion
Definition
atom that has lost one or more electrons
Term
chemical reaction
Definition
process in which atoms or groups of atoms reorganize into different substances
Term
activation energy
Definition
amount of energy needed to start a reaction
Term
phospholipids
Definition
lipids that make up cell membrane
Term
amino acid backbone
Definition
N-C-C
Term
peptide bond
Definition
connection between first N and last C
Term
polymer
Definition
large chain of monomers
Term
organic molecules
Definition
lipids, proteins, nucleic acids, monosaccharides
Term
monosaccharides
Definition
simple sugars- glucose, fructose, galactose
Term
disaccharides
Definition
2 sugars-sucrose, lactose, maltose
Term
polysaccharides
Definition
storage energy-starch, glycogen, cellulose
Term
catalyst
Definition
anything that causes a chemical reaction to occur
Term
exothermic
Definition
releases heat
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