Lecture 6 - final review.docx

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Biochem & Molecular Biology
BIOC 2300
Dr.Carmichael Wallace

Lecture 6 Oxidation/reduction Oxidation loss of electrons O I L R I G oxidation is the loss of electrons, reduction is the gain of electrons Managing electrons - Two prominent coenzymes accept electrons (BECOME REDUCED) and transfer them to O 2 o Nicotinamide adenine dinucleotide (NAD ) – requires niacin(acquired in the diet) o Flavin adenine dinucleotide (FAD) – requires riboflavin (acquired in the diet) o Also, nicotinamide adenine dinucleotide phosphate (NADP ) carries electrons but its role is mainly in reductive biosynthesis Oxidation-reduction reactions - In living organisms, energy-capturing and energy-releasing processes involve redox reactions - Many redox reactions have both an electron and a proton transferred o NAD+ accepts a proton and two electrons to become NADH o F
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