BIO 205 Lecture Notes - Lecture 23: Oxaloacetic Acid, Thioester, Atp Hydrolysis
17 Apr 2018
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Catabolism: breakdown of large food molecules such as carbohydrates, fats, and proteins into small pieces such as co2 and water, storing up energy i(cid:374) the for(cid:373) of (cid:862)high e(cid:374)ergy(cid:863) co(cid:373)pou(cid:374)ds such as atp and nadh. Anabolism: opposite of catabolism, since it involves consumption of. Atp as a source of energy for the synthesis of large macromolecules from small precursor building blocks; ex: glyconucleogenesis. Most fatty acids contain an even # of carbon atoms. Beta oxidation: carbonyl growing process, a carbonyl group is grown at the carbon position two atoms away from the carboxylic group. 2 carbons at the end are cut off to make acetyl-coa. Two co2 molecules are produced, converting the 6-carbon skeleton of citrate back into the 4-carbon skeleton of oxaloacetate. Each pyruvate produced is converted into three co2 molecules. Most co2 is produced in the krebs cycle. Products: 3 nadh, 1 fadh2, and 1 gtp. Krebs cycle: central hub in amino acid metabolism.
