Chapter 6 Flashcards
The energy of movement; includes light heat mechanical movement and electricity
Kinetic energy
In a chemical reaction the energy needed to force the electron shells of reactants together prior to the formation of products
Activation energy
The sum of all chemical reactions that occur within a single cell or within all the cells of a multicellular organism
Metabolism
Pertaining to a chemical reaction that requires an input of energy to proceed; an “uphill” reaction
Endergonic
Pertaining to a chemical reaction that releases energy (either as a heat or in form of increased entropy) ;a “downhill” reaction
Exergonic
A sequence of chemical reaction within a cell in which the products of one reaction are the reactants for the next reaction
Metabolic pathway
Energy can neither be created nor destroyed, but can change form
The first law of thermodynamics
The amount of useful energy decreases when energy is converted from one form to another
The second law of thermodynamics
What changes the enzyme shape and compromise its ability to function
Ph level
What affects the rate of enzyme-catalyst reaction
Temperature
Lower temperatures does what to enzyme
Slow them down
Higher temperatures does what to enzymes
Speeds up
What enters the enzyme active site
Substrates
Are high energy molecules that are synthesized at the site of an exergonic reaction
Energy Carrie molecules
Charged up by exergonic reactions and than release energy to endergonic
Energy- carrier molecules
