BIOCH200 Lecture Notes - Coenzyme Q10, Covalent Bond, Flavin Mononucleotide
10 Apr 2014
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Bioch 200 (march 21, 2014: high-energy intermediates, contain usable energy coming from bonding breaking between two parts of a molecule that have high electrostatic repulsion against each other, *can be recovered or infused. Atp requires 32kj of energy to make, but when broken down, released 32kj of energy: *there are 3 major types of these high-energy molecules: Nad+, nadp+, fad, fmn: *these are not high-energy molecules. *there are also other high-energy phosphate-containing molecules: ex. phosphorcreatine (effective atp store replenish- er) o. *unlike esters which have a linking oxygen atom, these molecules have a linking sulfur atom: *sulfur atoms are larger than oxygen molecules so they are more unstable due to restricted resonance. Less e- delocalization: *higher instability from electrostatic repulsion = more energy will be released when the covalent bond is broken, oxidative/reductive reactions, catabolism is oxidative. Oxidation = loss of electrons for bond breaking.
