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Biology Vocabulary

Chemistry of Life

TermDefinition
Acid Any substance that forms hydrogen ions (H+) in water has a ph below 7.
Atom is the smallest particle of an element that has the characteristics of that element.
Base is any substance that forms hydroxide ions (OH-) in water.
Compound is a substance that is composed of atoms of two or more different elements that are chemically combined.
Covalent Bond when two atoms share electrons.
Element also known as, everything is made of substances.
Ion is a charged particle made of atoms.
Ionic Bond the attractive force between two ions of opposite charge is known as this
Isotope atoms of the same element that have different numbers of electrons.
Metabolism all of the chemical reactions that occur within an organism.
Mixture a combination of substances in which the individual components retain their properties.
Molecule a group of atoms held together by covalent bonds.
Nucleus the center of an atom.
pH the measure of how acidic of basic a solution is.
Solution a mixture in which once or more substances(solutes)are distributed evenly in another substance(solvent).
Diffusion is the net movement of particles from an area of high concentration to an area of low concentration.
Dynamic Equilibrium the condition where there is continuous movement but no overall concentration change.
Hydrogen Bond the attraction between hydrogen and oxygen's opposite charges forming a weak bond.
Polar Molecule a molecule with unequal distribution of charge.
Amino Acid the basic building blocks of proteins.
Carbohydrate is a biomolecule composed of carbon, hydrogen, and oxygen with a ratio of about two hydrogen atoms and one oxygen atom for every carbon atom.
Enzyme a protein that changes the rate of an chemical reaction.
Isomer compounds that have the same chemical formula but different three dimensional structures.
Lipid are large biomolecules that are made mostly of carbon and hydrogen with a small amount of oxygen.
Nucleic Acids is a complex biomolecule that stores cellular information in the form of a code.
Nucleotide nucleic acids are polymers made of these smaller subunits.
Peptide Bond the covalent bond formed between amino acid.
Polymer a large molecule formed by a bunch of smaller molecules.
Protein is a large, complex polymer composed of carbon, hydrogen, oxygen, nitrogen,and sometimes sulfur.
Created by: Evann Pollard
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