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Phosphodiester bond

Phosphodiester bonds join the 5′-hydroxyl group of the deoxypentose of one nucleotide to the 3′-hydroxyl group of the deoxypentose of another nucleotide through a phosphate group. Reference: Champe, Pamela C. and Richard A. Harvey. 1994. Lippincott’s Illustrated Reviews : Biochemistry. … Continue reading

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Video Review 1: Origin of Life and Endosymbiotic Theory

As the title suggests an explanation is given for the origin of life and the endosymbiotic theory. Oparin’s (1924) hypothesis alluded to the spontaneous generation of life via chemical and physical processes. In 1953 Miller and Urey performed an experiment … Continue reading

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Electron Transport Chain

The electron transport chain relies on the creation of a proton gradient across a membrane via electron transfer between an electron donor and electron acceptor. The proton gradient is coupled to the production of chemical energy usable by the host(usually … Continue reading

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TCA Cycle

Also known as the tricarboxylic cycle and Krebs’ cycle, organism use this pathway to yield energy via the oxidation of acetate (in the form of acetyl CoA), that is produced as a result of the catabolism of carbohydrates, proteins and … Continue reading

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Glycolysis

Glycolysis is a metabolic pathway which converts glucose into pyruvate, harnessing the energy of the high-energy compounds ATP and NADH. It occurs in the cytosol and provides several intermediates for other critical metabolic pathways.  

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