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Biology
Endocrinology and Metabolism
Metabolism
1. Introduction to Metabolism
2. Energy and Thermodynamics in Biological Systems
3. The Role of ATP in Metabolism
4. Enzymes and Coenzymes in Metabolism
5. Carbohydrate Metabolism
6. Lipid Metabolism
7. Protein and Amino Acid Metabolism
8. Integration and Regulation of Metabolism
9. Metabolic Disorders
Carbohydrate Metabolism
Glycolysis
Overview and Significance
Cellular Location
Overall Reaction
Preparatory Phase
Glucose Phosphorylation
Glucose-6-phosphate Isomerization
Fructose-6-phosphate Phosphorylation
Aldolase Reaction
Triose Phosphate Isomerase
Payoff Phase
Glyceraldehyde-3-phosphate Dehydrogenase
Phosphoglycerate Kinase
Phosphoglycerate Mutase
Enolase
Pyruvate Kinase
Net ATP and NADH Yield
Regulation of Glycolysis
Hexokinase Regulation
Phosphofructokinase-1 Regulation
Pyruvate Kinase Regulation
Hormonal Control
Alternative Entry Points
Clinical Significance
Pyruvate Metabolism
Overview of Pyruvate Fates
Aerobic Conditions
Pyruvate Dehydrogenase Complex
Acetyl-CoA Formation
Regulation of Pyruvate Dehydrogenase
Anaerobic Conditions
Lactic Acid Fermentation
Lactate Dehydrogenase
Cori Cycle
Alcoholic Fermentation
Pyruvate Decarboxylase
Alcohol Dehydrogenase
Other Pyruvate Fates
Alanine Formation
Oxaloacetate Formation
Fatty Acid Synthesis
Citric Acid Cycle
Overview and Importance
Cellular Location
Acetyl-CoA Entry
Cycle Reactions
Citrate Formation
Isocitrate Formation
Alpha-Ketoglutarate Formation
Succinyl-CoA Formation
Succinate Formation
Fumarate Formation
Malate Formation
Oxaloacetate Regeneration
Energy Production
NADH Formation
FADH2 Formation
GTP Formation
Regulation
Allosteric Control
Product Inhibition
Calcium Effects
Amphibolic Nature
Anaplerotic Reactions
Oxidative Phosphorylation
Overview
Mitochondrial Structure
Electron Transport Chain
Complex I
Structure
Electron Flow
Proton Pumping
Complex II
Structure
TCA Cycle Connection
Electron Transfer
Complex III
Structure
Q Cycle
Proton Pumping
Complex IV
Structure
Oxygen Reduction
Proton Pumping
Coenzyme Q
Cytochrome c
Chemiosmosis
Proton Gradient Formation
Electrochemical Gradient
Proton Motive Force
ATP Synthase
Structure
Rotational Mechanism
ATP Formation
ATP Yield Calculations
P/O Ratios
Theoretical vs Actual Yields
Inhibitors and Uncouplers
Rotenone
Antimycin A
Cyanide
DNP
Gluconeogenesis
Overview and Physiological Role
Cellular Location
Precursors
Lactate
Glycerol
Amino Acids
Propionate
Bypass Reactions
Pyruvate to PEP Conversion
Fructose-1,6-bisphosphate to Fructose-6-phosphate
Glucose-6-phosphate to Glucose
Cori Cycle
Glucose-Alanine Cycle
Regulation
Allosteric Control
Hormonal Control
Energy Cost
Glycogen Metabolism
Glycogen Structure
Glycogen Synthesis
UDP-Glucose Formation
Glycogen Synthase
Branching Enzyme
Glycogen Breakdown
Glycogen Phosphorylase
Debranching Enzyme
Phosphoglucomutase
Regulation
Covalent Modification
Allosteric Control
Hormonal Control
Glycogen Storage Diseases
Pentose Phosphate Pathway
Overview and Functions
Oxidative Phase
Glucose-6-phosphate Dehydrogenase
6-Phosphogluconolactonase
6-Phosphogluconate Dehydrogenase
NADPH Production
Non-oxidative Phase
Ribulose-5-phosphate Epimerase
Ribose-5-phosphate Isomerase
Transketolase
Transaldolase
Regulation
Clinical Significance
G6PD Deficiency
Hemolytic Anemia
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4. Enzymes and Coenzymes in Metabolism
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6. Lipid Metabolism