TCA _ مقررات المستوى الثالث كليه الطب _ Biochemistry

The Three Stages of Respiration • Stage I All the fuel molecules are oxidized to  acetyl-CoA. • Stage II :Acetyl-CoA is completely oxidized into CO2 electrons are collected by NAD and FAD via the  electrons are collected by NAD and FAD via the  citric acid cycle. • Stage III  Passage of electrons through the electron  transport system to yield ATP from oxidative  phosphorylation ...

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Pyrovate Oxidation_مقررات المستوى الثالث كليه الطب _Biochemistry

ANAEROBICALLY GLYCOLYS Respiratory chain is absence +Reoxidation of NADH NAD via Respiratory  chain is inhibited Reoxidation of NADH via lactate formation  allows glycolysis to proceed in the absence of  +oxygen by regenerating sufficient NAD ...

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GLYCOLYSIS _مقررات المستوى الثالث كليه الطب _ Biochemistry

Contents • Introduction: CHO metabolism. • CHO: Digestion and Absorption. • CHO: Metabolic Pathways 1-Glycolysis. 2-Tri carboxilic  Acid (TCA). 3-Electron Transport Chain (ETC). 4-Oxydative Phosphorylation (O.P.) 5-Glycogen Metabolism. 6-Pentose Phosphate Pathway (PPP). 7-Gluconeogenesis. ...

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ETC& OP _ مقررات المستوى الثالث كليه الطب _Biochemistry

Mitochondria • Outer membrane relatively permeable • Inner membrane permeable only to those  molecules with specific transporters 2– Impermeable to NADH and FADH – Permeable to pyruvate • Compartmentalization – Kreb's and β-oxidation in matrix – Glycolysis in cytoplasm. ...

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Vit final 2014/مقررات المستوى الثالث .كليه الطب .Biochemistry

Vitamins are necessary components of healthy  diets and play important roles in cellular  metabolism.  • Vitamins are considered “micronutrients.”  • Although these substances occur in only very  small amounts within cells, they are critically  important.  Their absence is usually  manifested as some deficiency disease.  •? What are vitamin ...

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Introduction to Metabolism 2014 / مقررات المستوى الثالث .كليه الطب .Biochemistry

Contents Introduction   General Principals of Metabolism   General Motifs of Metabolism  ATP: Universal Currency of free energy  Activated Carriers  Key Reactions  Regulation  Metabolism : Definition “The sum of ALL the chemical  processes occurring in an organism at  one time”  Concerned with the management of  material and energy resources within  the cell  ...

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Enzymes 2014 / مقررات المستوى الثالث .كليه الطب .Biochemistry

Contents  Introduction.  Why Enzymes Are Needed .  Mechanism of Enzyme Action.  Enzymes Properties.  Nomenclature & Classification.  Factors affecting Enzymes.  Enzyme Regulation.  Enzyme Inhibition. Enzymes: Definition Enzymes are organic catalysts that speed up  the rate of a chemical reaction without being  permanently altered in the process.  • The  first  enzyme  was  isolated  in  1833  by  Payen  and  Persoz  from  barley  seeds....

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