LIFESCI 7A Lecture Notes - Lecture 3: Exergonic Reaction, Kinetic Energy, Exergonic Process
Document Summary
Forming bonds release enersgy: enzymes: align, orient, lowers activation energy, active site is critical. Changing active site can change activity of enzyme: enzymes also catalyze endergonic reactions but even with the addition of the enzyme, this reaction is not favorable. It can be coupled with an exergonic reaction: high conc of reactants can make forward reaction exergonic, high conc of products can make reverse reaction exergonic, all cells use energy in the form of atp (adenosine triphosphate) Co2, h2o: weak bonds are easily broken bc it"s only somewhat more stable than if the two atoms didn"t share e, weak covalent bonds require a lot of energy to stay intact (have a lot of chemical energy). C, c-h: atp is a readily accessible form of cellular energy, made up of the base adenine, 5-carbon sugar ribose, and 3 phosphate groups, chemical energy of atp is held in bonds connecting phosphate groups.
