Molecular composition dry weight 4 main components

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Unformatted text preview: Molecular composition (% dry weight): 4 MAIN COMPONENTS Protein Polysaccharide Lipid NA Precursors Inorganics ENZYMES/ CELL MEMBRANE/WALL MATERLS, STORAGE MAT. /CELL WALL MEMBRANES/STORAGE MATER. NUCLEIC ACIDS=DNA RNA 55% 5% 9% 25% 4% 1% 99% PhotoautotrophsCO2 fixation (requires CO2, ATP and reducing power) PLANT PHOTOSYNTH Calvin cycle SOURCE OF ELEC IS WATER. 6CO2 + 12 NADPH + 18 ATP C6H12O6 + 12 NADP + 18 ADP requires: CO2 (air) energy (ATP/photosynthesis) reducing power (NADPH/water) ChemoautotrophsOther (reverse TCA: CO2-->pyruvate) USE INORGANIC CARBON Reverse TCA/glycolysis REVERSE TCA/GLYC INPUT IS GLUCOSE GOAL MAKE CO2 AND ENERGY TAKE NRG OUT/CO2 DIFF: END WITH HEXOSE/GLUCOSE: GOAL MAKE CELL MATERIA PUT NRG IN/CO2 IN, PUT NRG IN. TAKE ELEC AND PUT THEM ON CO2 AND MAKE REDUCED CARBON COMPOUNDS PUT C02 AND NOT NRG OUT carbon backbone CELL DOES NOT START FROM SCRATCH; CELL WILL MAKE WHATEVER IT NEEDS CARBON BACKBONE: DERIVED FROM OXALACETATE AND ALPHA KETOGLUTARATE , PRODUCED AS PART OF KREBS; ARROWS CAN GO IN BTOH DIRECTIONS COMPOUNDS WILL BE PRODUCED TO MEET WHERE GREATEST CELL DEMAND IS PYRUVATE CARBON BACKBONE IS ALREADY IN CELL CARBON BACKBONE: ALPHA KETO AND OXALACETATE; PRODUCED FROM KREBS nitrogen NITROGEN PATHWAY: AMINO ACID WILL TAKE CARBON BACKBONE AND MAKE NITROGEN BACKBONE; 99% OF NITROGEN GO IN GLUTAMATE PRODUCTION N2 gas, NO3 , NH3 99% OF CELL PRODUCTION IS FOR GLUTAMATE GLUTAMATE HANDED TO AA 47:22 NH3 Molecular composition Protein Polysaccharide Lipid NA Precursors Inorganics 55% 5% 9% 25% 4% 1% 99%...
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