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GLYCOLYSIS AND OTHER PATHWAYS EMP PATHWAY— ANOTHER NAME FOR GLYCOLYSIS GLYCOLYSIS A UNIVERSAL PATHWAY YIELDS 2ATPS [NET] THROUGH SUBSTRATE LEVEL PHOSPHORYLATION OCCURS IN CYTOSOL ANAEROBIC GLUCOSE + ATP IN THE PRESCENCE OF GLUCOKINASE= GLUCOSE-6 PHOSPHATE FRUCTOSE-6 PHOSPHATE +ATP= FRUCTOSE 1,6 DIPHOSPATE 2 PGAL- - ->2 PEP2 PYRUVIC ACID MOLECULES FATE OF PYRUVIC ACID UNDER ANAEROBIC CONDITIONS IT IS FERMENTED IN HUMANS IT BECOMES LACTIC ACID IN YEAST IT BECOMES ETOH + CO2 TRANSITION REACTION AN AEROBIC REACTION CO ENZYME A [CO A] PUTS ONE CARBON ON TO O2 TO FORM CO2, PICKS UP 2 CARBONS FROM PYRUVIC ACID AND BECOMES ACETYLCO ENZYME A [ACETYL CO A] WHICH CARRIES THE CARBONS WITH THE H AND ELECTRONS ATTACHED INTO THE MITOCHONDRIA INTO THE KREB’S CYCLE NAD NAD—NICOTINAMIDE ADENINE DINUCLEOTIDE—A COENZYME-A CARRIER COMPOUND WHICH PICKS UP H+ AND ELECTRONS AND CARRIES THEM INTO THE ELECTRON TRANSPORT SYSTEM WHERE 3 ATP MOLECULES WILL BE FORMED NIACIN – a “B VITAMIN” THAT IS NECESSARY FOR NAD TO FUNCTION and FORM FAD FAD—FLAVINE ADENINE DINUCLEOTIDE — A COENZYME A CARRIER COMPOUND WHICH CARRIES H+ AND ELECTRONS INTO THE ELECTRON TRANSPORT SYSTEM YIELDING 2 ATP MOLECULES RIBOFLAVIN-A “B VITAMIN” WHICH MUST BE PRESENT FOR FAD TO FUNCTION and FORM KREB’S CYCLE AN AEROBIC REACTION TRICARBOXYLIC ACID CYCLE AND CITRIC ACID CYCLE [OTHER NAMES] OCCURS IN THE MATRIX OF THE MITOCHONDRION 3 IMPORTANT COMPOUNDS CITRIC ACID [6 C] ALPHA-KETOGLUTARIC ACID [5 C] OXALOACETIC ACID [4 C] KREB’S CYCLE CONTINUED FOR EACH TURN OF THE CYCLE THERE ARE 3 NADHs FORMED 1 FADH2 FORMED 2 CO2 FORMED 1 ATP HEAT ELECTRON TRANSPORT SYSTEM AN AEROBIC REACTION CYTACHROME SYSTEM RESPIRATORY CHAIN COMPOSED OF A SERIES OF OXIDATIONREDUCTION REACTIONS [ReDox] FINAL PHASE OF CELLULAR RESPIRATION IN WHICH NADH AND FADH2 ARE OXIDIZED WITH THEIR ELECTRONS BEING PASSED ALONG THE CHAIN ELECTRON TRANSPORT SYSTEM CONTINUED IF NADH BRINGS THE ELECTRONS AND HYDROGENS INTO THE SYSTEM THEN 3 ATP MOLECULES WILL BE MADE USING THE ATPSYNTHASE MOLECULE [CF 1 OR F1 PARTICLE] WHEN FADH2 BRINGS THE H+ AND ELECTRONS THEN ONLY 2 ATP MOLECULES ARE MADE THE LAST 2 COMPOUNDS, CYTACHROME A AND CYTOACHROME A3 ACT AS THE ENZYME CYTACHROME OXIDASE—THEY PLACE ELECTRONS AND 2 HYDROGENS ON TO OXYGEN TO FORM THE WASTE PRODUCT WATER WASTE PRODUCTS ELECTRON TRANSPORT SYSTEM WATER [H2O] KREB’S CYCLE OR CITRIC ACID CYCLE OR TRICARBOXYLIC ACID CYCLE CARBON DIOXIDE [CO2] FATTY ACIDS AND AMINO ACIDS ENTERING THE KREB’S CYCLE FATTY ACIDS DISSOLVE THROUGH THE CELL MEMBRANE UNDERGO BETAOXIDATION FORM INTERMEDIATE PRODUCTS WHICH CAN LEAVE THE CELL AND LOWER THE pH Keto acids =Acetone, acetoacetic acid, AMINO ACIDS ENTER BY PINOCYTOSIS ARE DEAMINATED NH2 REMOVED AND CHANGED TO UREA FORM THE SAME INTERMEDIATE PRODUCTS AS FATTY ACIDS DO BOTH FATTY ACIDS AND AMINO ACIDS CAN ENTER THE KREB’S CYCLE THROUGH ACETYL CO A SUMMARY 1 GLYCOLYSISOCCURS IN CYTOPLASM TRANSITION REACTIONSTARTS IN CYTOPLASM ENDS IN THE MITOCHONDRION KREB’S CYCLE OCCURS IN THE MATRIX OF THE MITOCHONDRION ELECTRON TRANSPORT SYSTEM OCCURS ON THE CRISTAE OF THE MITOCHONDRION SUMMARY 2 GLYCOLYSIS —2 ATPS NO OXYGEN USED TRANSITION REACTION [T R]— IF OXYGEN USED 2 CARBONS GO INTO THE KREB’S CYCLE T R CONTINUED AND NAD OR FAD CARRY Electrons AND HYDROGEN INTO THE ETS IF NO OXYGEN USED FERMENTATION OCCURS SUMMARY 3 KREB’S CYCLE [CITRIC ACID CYCLE] A 2-CARBON CPD IS ATTACHED TO A 4-CARBON CPD TO FORM CITRIC ACID 3 TURNS TO MAKE 1 PGAL [A 3CARBON CPD] OXYGEN IS USED ATP IS MADE CO2 IS A WASTE PRODUCT SUMMARY 4 ELECTRON TRANSPORT SYSTEM [OCCURS ON THE CRISTAE] A SERIES OF OXIDATION-REDUCTION REACTIONS [GIVING UP ELECTRONS AND TAKING ON ELECTRONS.] IF NAD CARRIES THE ELECTRONS THEN 3 ATPS ARE MADE IF FAD CARRIES THE ELECTRONS ONLY 2 ATPS ARE MADE THE FINAL ELECTRON ACCEPTOR IS OXYGEN WHICH THEN COMBINES WITH 2 HYDROGENS TO MAKE WATER [H2O]