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Ch 2 Biology

QuestionAnswer
Atoms Neutral, smallest part of element to retain properties, makes up all matter
Parts Proton, Neutron, Electron
Location of parts Pro and Neu in nucleus, ele in energy levels
Charges of parts Pro is positive, Neutron is neutral, electron is negative
Elements one kind of atom
Molecule shares electrons
Covalent Bond shares electrons
Adhesion attraction between different substances
Polar has slight charge, dissolves in water, water will dissolve polar and ionic
Nonpolar no charge, will not mix with polar (water)
DNA Stores hereditary information, double helix
Enzymes speed up chemical reactions, decrease activation energy, not used up in reaction
Ionic Bonds between opposite charges
pH Scale acid below 7(many Hydrogen ions), base above 7(few hydrogen ions)
Organic Molecules carbohydrate(sugars), lipids(soluble in water), nucleic acids, proteins (made of amino acids)
Polysaccharides carbohydrate
Lipids fats and oils
Nucleic Acids DNA, RNA, made of nucleotides
Energy storage in carbohydrates and lipids
Reaction Diagram
Substrate molecule on which an enzyme acts
Amylase digestive enzyme that breaks down starch into cellulose
Created by: evroman
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