lab 2 Flashcards
Amount of energy that reactants in a chemical reactants in a chemical reaction must absorb before the reaction can start
Activation Energy
substance upon which an enzyme reacts
substrate
Phenomenon of enzyme shape determining the reaction the enzyme catalyzes
Specificity
The location in an enzyme where a chemical reaction can start
Activation Site
Functional unit composed of one or more polypeptides. each polypeptide is composed of a linear sequence of amino acids
Protein
Any amino acid that humans cannot synthesize and thus must be obtained from the diet
Essential Amino Acids
Formation and breaking of chemical bonds result in change of composition of a substance
Chemical Reaction
Process where proteins unravel and change their native shape thus losing their biological activity
Denature
Substance that provides nourishment
Nutrients
Change in shape of active site in enzyme so it binds tightly to a substrate
Induced fit
Monomer subunit of a protein. contains an amino, carboxyl, and unique side group
Amino Acid
Certain vitamins and other substance that protect the body from the damaging effects of free radicals
Antioxidants
Substance that lowers activation energy of a chemical reaction, there by speeding up the reaction
Catalyst
Speeds up the rate of a chemical reaction, enzymes are biological catalysts
catalyze
Process whereby biological cells generate new proteins
Protein Synthesis
