glycolysis and other pathways
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Transcript glycolysis and other pathways
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]