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science cpt2 vocab

QuestionAnswer
Atom Basic unit of matter
Nucleus The center of an atom which has protons and nutrons, in cells containing genetic material (DNA) and controls cells functions
Electron Negatively charged particle located outside the nucleus
Ionic bond bond forme when one or more electrons are transferred from one atom to another
Ion atom that has a positive or negative charge
Covalent bond bond formed by the sharing of electrons between atoms
Cohesion attraction between molecules of the same substance
solute a substance that is dissolved in a solvent to make a solution
solvent substance in which a solute dissolves to form a solution
pH scale measurment system used to indicate the concentration of hydrogen ions in solution (o-14)
monomer small unit that can join together with other small unites to form polymers
polymer large compounf formed from combinations of many monomers
carbohydrate compound made up of carbon, hydrogen, and oxygen atoms. major sourse of energy for the human body
monosaccharide single sugar molecule
polysaccharide large molecule from monosaccharide
Lipic a macromolecule made mainly from carbon and hydrogen atoms, includs fats, oils, waxes.
Nucleic acid macromolecule containing hydroge, oxygen, nitrogen, carbon, phosporus
DNA nucleic acid that contains the sugar deoxyribose
protein Macromolecules that contains carbon, hydrogen, oxygen and nitroge-needed to make and repair enzymes
amino acid compound with no amino group
Reactant elemant or compoud that enters into a chemicsl reaction
product element or compound produced by a chemical reaction
catalyst substance that speeds up the rate of a chemical reaction
Enzyme protein that acts as a biological catalyst
Element substance consisting entirely of one type of atom
Created by: eeliza15
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