BIOL 116 Lecture Notes - Lecture 7: Fructan, Pheophytin, Metabolic Pathway

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A metabolic pathway that regenerates nad+ from stockpiles of nadh. Allows glycolysis to produce atp in absence of electron acceptor of etc. When nadh gets rid of electrons, nad+ is produced. Glycolysis can then continue to produce atp via substrate-level phosphorylation. Use up all oxygen in environment, continue with glycolysis to metabolize sugar, but enzymatically converting pyruvate to acetaldehyde giving off co2. Acetaldehyde accepts electrons from nadh ethanol and nad+ which helps bread rise. Fermentation is extremely inefficient compared to aerobic cellular respiration. Photosynthesis: process of producing carbohydrate(glucose) from co2 , h2o and sunlight. Metabolic products of light reactions : oxygen, atp, nadph. Thylakoids contain pigments (chlorophyll) in membranes that absorb light. Pigments- molecules that absorb only a certain wavelength of light. 400nm - 710nm, different colors correspond to wavelength. Absorb blue and red light and transmit green light. Long tail (isoprene subunits that anchors chlorophyll in thylakoid membrane) Head(ring structure with a magnesium atom, absorbs light)

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