Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
62 Cards in this Set
- Front
- Back
TCA cycle occurs in the
|
Mitochondria
|
|
TCA cycle is a common pathway for
|
Carbohydrate, Lipid, and Protein Metabolism
|
|
Acetyl CoA used in
|
Fatty Acid Biosynthesis, Cholesterol
|
|
Enzymes Used in TCA Cycle(8)
|
Citrate Synthetase
Aconitase Isocitrate Dehydrogenase α-ketoglutarate dehydrogenase Succinyl CoA Synthetase Succinyl Dehydrogenase Fumarase Malate Dehydrogenase |
|
Citrate Synthetase
|
Formation of Citrate from Oxaloacetate and Acetyl CoA
|
|
Aconitase
|
Citrate to Isocitrate
Moves C4 Hydroxyl to C5. Cis-Aconitate intermediate |
|
Isocitrate Dehydrogenase
|
Isocitrate to α-ketoglutarate
(removal of first CO2 molecule) |
|
α-ketoglutarate Dehydrogenase
|
α-ketoglutarate to Succinyl CoA
(Removal of 2nd CO2 molecule) |
|
Succinyl CoA Synthetase
|
Succinyl CoA to Succinate
produces GTP |
|
Succinyl Dehydrogenase
|
Succinate to Fumarate
Oxidation of C2-C3 bonnd |
|
Any time alkene is formed. ___ is produced
|
FADH2
|
|
Fumarase
|
Fumarate to Malate
(addition of water) |
|
Malate Dehydrogenase
|
Malate to Oxaloacetate
|
|
All Dehydrogenases produces ____
|
NADH
|
|
Sites of TCA cycle Regulation(3)
|
Citrate Synthetase
Isocitrate Dehydrogenase α-ketoglutarate Dehydrogenase |
|
Citrate Synthetase Inhibited by
|
ATP, NADH, Citrate
|
|
Isocitrate Dehydrogenase Inhibited by
|
ATP, NADH
|
|
Isocitrate Dehydrogenase Activated by
|
ADP
|
|
α-Ketoglutarate Dehydrogenase Inhibited by
|
ATP
NADH Succinyl CoA |
|
α-ketoglutarate Dehydrogenase Compound takes ______ and makes ____
|
Takes: α-ketoglutarate, NAD+, Acetyl CoA
Makes:Succinyl CoA, NADH, CO2 |
|
3 Subunits of the AKDC(Cofactors)
|
α-ketoglutarate dehydrogenase(TPP)
transsuccinylase(lipoamide) Dihydrolipoyl Dehydrogenase(FAD) |
|
2 forms of Arsenic common in poisoning
|
Aresnite(AsO2-)
Arsenate(HAsO42-) |
|
HAsO4 isoelectronic with____and competes with___
|
HPO4-
Phosphate |
|
Bonding of ___ prevents reformation of lipoamide
|
Arsenite
|
|
Mesaprosol used to treat
|
Human African Trypanosomiasis
|
|
Oxidative Phosphorylation occurs in
|
Inner membrane of mitochondria
|
|
Inner Membrane of mitochondria made up of mostly
|
proteins
|
|
Outer membrane of mitochondria made up of mostly
|
phospholipids
|
|
PDC, most of TCA, and Beta-Oxidation contained in
|
Mitochondrial Matrix
|
|
Electron chain _____ the IMM
|
polarizes
|
|
4 protein Complexes of Electron Transport Chain(type)
|
I. NADH-coenzyme Q(oxidoreductase)
II. Succinate-coenzyme Q(Oxidoreductase) III.CoEnzyme Q-Cytochrome C(oxidoreductase) IV. Cytochrome C Oxidase |
|
Complex I uses ____ to transfer electrons from ____.
|
Uses: Ubiquinone
Electrons from: NADH |
|
Complex I first transfers electrons to
|
FMN
|
|
Complex III has ___ as a cofactor
Needs___ Cyt C per Hydroquinone |
Cofactor:Iron
2 |
|
Complex IV has __ as a cofactor
Has to be run___times to make 2 molecules of water |
Cofactors: Fe, Cu
4 |
|
Complex II has ___ as a cofactor
Does not act as___ |
Cofactor:FAD
Does not act as proton pump |
|
Complex IV reduces ___ stepwise
|
Reduces Oxygen
|
|
_____found in mitochondrial space near complex IV
|
Superoxide Dismutase
|
|
Superoxide Dismutase
|
destroys any reactive oxygen species
|
|
2 Domains of ATP synthesis and their functions
|
F0=cylinder with proton channel
F1=ATP production |
|
ATP transported from IMM to mitochondrial space by
|
ADP-ATP translocase.
|
|
Complex I Inhibitors
|
Rotenone, Barbituates
|
|
Rotenone used for
|
head lice, scabies
|
|
Complex III inhibitors
|
Antimycin A
|
|
Antimycin A used a
|
topical fungicide, miticide, and insecticide
|
|
Complex IV inhibitors
|
Molecules that can compete with Oxygen for binding.
CO, CN-, N3-(high affinity for Iron III) |
|
2 pathways to transport NADH produced in Glycolysis
|
Glycerol Phosphate Shuttle
Malate-Aspartate Shuttle |
|
___pathway loses energy when transporting NADH
|
Glycerol Phosphate Shuttle
|
|
Glycerol-3-phosphate dehydrogenase
|
Dihydroxyacetone Phosphate to Glycerol-3-Phosphate
|
|
Glycerol-Phosphate Shuttle carries electrons to complex___
|
II
|
|
2 Enzymes involved in Malate-Aspartate Shuttle
|
Malate Dehydrogenase
Aspartate Aminotransferase |
|
2 pathways to transport NADH produced in Glycolysis
|
Glycerol Phosphate Shuttle
Malate-Aspartate Shuttle |
|
___pathway loses energy when transporting NADH
|
Glycerol Phosphate Shuttle
|
|
Glycerol-3-phosphate dehydrogenase
|
Dihydroxyacetone Phosphate to Glycerol-3-Phosphate
|
|
Glycerol-Phosphate Shuttle carries electrons to complex___
|
II
|
|
2 Enzymes involved in Malate-Aspartate Shuttle
|
Malate Dehydrogenase
Aspartate Aminotransferase |
|
2 Transporters used in Malate Aspartate Shuttle
|
ASP/GLU transporter
AKG/Mal transporter both found on inner mitochondrial membrane |
|
In malate-aspartate shuttle, NADH donates its electrons to
|
Oxaloacetate
|
|
Malate Dehydrogenase
|
Oxaloacetate to Malate
|
|
Aspartate Aminotransferase
|
Oxaloacetate to Aspartate
Glutamate to alpha ketoglutarate |
|
AKG/Malate transporter
|
brings malate into the matrix
exports alpha ketoglutarate into the IMS |
|
ASP/GLU transporter
|
brings Glutamate into the matrix
exports Aspartate into IMS |