Biology Chapter 6: Chemistry in Biology
CH 6 Vocab
Terms in this set (40)
substances that release hydrogen ions (H+) when they are dissolved in water.
the minimum amount of energy needed for reactants to form products in a chemical reaction.
the specific location where a substrate binds on an enzyme.
small compounds that are made of carbon, nitrogen, oxygen, hydrogen, and sometimes sulfur.
tiny indivisible particles that are the building blocks of matter.
substances that release hydroxide ions (OH-) when dissolved in water.
mixtures that can react with acids or bases to keep the pH within a particular range.
compounds composed of carbon, hydrogen, and oxygen in a ratio of one oxygen and two hydrogen atoms for each carbon atom (CH2O); aka carbs
a substance that lowers the activation energy needed to start a chemical reaction.
the process by which atoms or groups of atoms in substances are reorganized into different substances.
a pure substance formed when two or more different elements combine.
the chemical bond that forms when electrons are shared by two atoms.
negatively charged particles that are outside the nucleus in an atom.
a pure substance that can't be broken down into other substances by physical or chemical changes.
special proteins, which are biological catalysts that speed up the rate of chemical reactions.
the components of a mixture remain distinct; you can tell what they are individually.
when a mixture has a uniform composition throughout; aka solution.
a weak interaction involving a hydrogen atom and a fluorine, oxygen, or nitrogen atom.
an atom that has lost or gained one or more electrons.
an electrical attraction formed between two oppositely charged atoms or groups of atoms.
atoms of the same element with different numbers of neutrons.
molecules made mostly of carbon and hydrogen that make up the fats, oils, and waxes.
large molecules that are formed by joining smaller organic molecules together.
a combination of two or more substances in which each substance retains its individual characteristics and properties
a compound in which the atoms are held together by covalent bonds.
particles that have no charge, or are neutrally charged; in the nucleus of an atom.
complex macromolecules that store and transmit genetic information.
the smaller, repeating subunits that make up nucleic acids.
the center of an atom.
the measure of how acidic or basic a solution is.
molecules that have an unequal distribution of charges.
molecules made from repeating units of identical or nearly identical compounds.
the substance formed during a chemical reaction.
a compound made of amino acids.
positively charged particles in the nucleus of an atom.
the starting substance for a chemical reaction.
a substance in which another substance is dissolved.
another name for a homogeneous mixture (has a uniform composition throughout).
the reactant that bind to an enzyme.
van der Waals forces
the attractive forces between the positive and negative regions of molecules that pull on the molecules and hold them together.
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