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30 terms

CP Biology Wayne Hills HS

Chapter 2 Vocabulary
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acid
Compounds that forms hydrogen ions in solutions
base
compound that produces hydroxide ions in solution
buffer
weak acid or base that can react with strong acids or gases to help prevent sharp sudden change in ph
monomer
small unit that can join together with other small units to form polymers
polymer
large compound formed from combinations of many monomer
carbohydrate
compound made of carbon, hydrogen and oxygen atoms
monosaccharide
single sugar molecule
polysacchride
large macromolecule formed from monosaccharides
lipid
macromolecule made mainly from carbon and hydrogen atoms
nucleic acid
macromolecule containing hydrogen, oxygen, nitrogen, carbon and phosphorus
cohesion
attraction between molecules of the same substances
adhesion
attraction between molecules of different substances
mixture
materials composed of two or more elements or compounds that are physically mixed together but not chemically combined
solution
mixture of two or more substances in which the molecules of the substances are evenly distributed
solute
substance that is dissolved in a solvent to make a solution
solvent
substance in which a solute is dissolved to form a solution
suspension
mixture of water and non-dissolved materials
pit scale
measurement system used to indicate the concentration of hydrogen ions in solution
nuleotide
monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
ribonucleic acid
(RNA) single-stranded nucleic acid that contains the sugar ribose
deoxyribonucleic acid
(DNA) nucleic acid that contains the sugar deoxyribose
protein
macromolecule that contains carbon, hydrogen, oxygen, and nitrogen
amino acid
compound with an amino group on one end and a carboxly group on the other end
chemical reaction
process that changes one set of chemicals into another set of chemicals
reaction
element or compound that enters into a chemical reaction
product
element o compound produced by a chemical reaction
activation energy
energy needed to get a reaction started
catalyst
substance that speeds up the rate of a chemical reaction
enzyme
Protein that acts as a biological catalyst
substance
reaction of an enzyme catalyst reaction