BY 108 Chapter Notes - Chapter 8: Endergonic Reaction, Enzyme Inhibitor, Adenine
Document Summary
Atp and biocemical pathways adenosine triphosphate (atp) - main energy currency used in cells. Made of ribose, adenine (w/ 2 c-n rings), triphosphate group. Adenine forms the base, attracting hydrogen ions. Phosphates joined by unstable bonds, repelling each other. Energy of repulsion stored in bonds that hold phosphates together. Bonds easily broken, easily turned into adenosine diphosphate (adp) Nearly all endergonic reactions require less energy than provided by transferring a phosphate group transfers energy cleavage of atp. Enzymes catalyzing endergonic reactions have 2 binding sites: 1 for reactant, other for atp. Most cells only contain a few seconds" supply of atp at a time metabolism - all chemical reactions carried out by an organism. Anabolism - reactions that use energy to make/change bonds. Catabolism - reactions that produce energy when breaking chemical bonds biochemical pathways - sequence of reactions; organizational metabolic units. Product of 1 reaction becomes substrate for next reaction.
