'Acetyl group' diaporamas de présentation

Lecture Connections

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Metabolism II and Glycolysis 5/7/03

Metabolism II and Glycolysis 5/7/03. Organic reaction mechanisms. Much can be learned by studying organic model reactions when compared to enzyme catalyzed reactions. 1. Group transfer reactions 2. Oxidations and reductions 3. Eliminations, isomerizations and rearrangements

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Bioenergetics and Metabolism

Bioenergetics and Metabolism. Metabolism. Metabolism: The sum of all chemical reactions involved in maintaining the dynamic state of a cell or organism. Pathway: A series of biochemical reactions.

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Opium and Morphine

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BIOMOLECULES AND METABOLISM 3. Metabolism and Its Control

BCH 1002 Biochemical Aspects of Health and Disease. BIOMOLECULES AND METABOLISM 3. Metabolism and Its Control. Prof. K. M. Chan Dept. of Biochemistry Chinese University Rm 513B, Basic Medical Sciences Building Tel: 3163-4420; Email: kingchan@cuhk.edu.hk. Contents.

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Citrate Cycle (CC) - exercise -

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Biochemistry

Biochemistry. Metabolism. Cellular Metabolism. Metabolism. All the chemical reactions in the body; or acquiring and using energy Digestion: catabolism (breakdown) of nutrients in the GI tract for absorption ATP production for cellular energy Anabolism to build cellular structures

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Methylation

Methylation. Methyltransferases Target: Hydroxyl groups, amines, thiols Substrates mainly endogenous: Catechols, noradrenalin, histamine Conjugating moiety: Methyl group Co-factor: S-adenosylmethionine. S-adenosylmethionine. Methylation Reaction. Substrate: Catechol. Enzyme:

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ENZYMES

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ABO & Rh Discrepancies

ABO & Rh Discrepancies. Definition. When the results of the forward grouping (patient cells) do not correspond to the results of the reverse grouping (patient serum) or abnormal reactivity is present (i.e. Mixed Field) i.e. the forward does NOT match the reverse.

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Tricarboxylic Acid Cycle

Tricarboxylic Acid Cycle. Siti Annisa Devi Trusda Biochemistry Department. Overview. ?final pathway where oxidative metabolism of CH, AA, FA?carbon skeleton : CO2 & H2O ?provides energy (ATP) ?occurs in mitochondria?in close proximity to reactions of electron transport

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Chapter 6

Chapter 6. How Do Organisms Supply Themselves With Energy?. Key Questions. How do organisms supply themselves with energy? How do organisms extract energy from glucose? How is the energy in glucose used to make ATP?. How Do Organisms Supply Themselves With Energy?. All organisms need energy

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Ch. 25: Lipids Metabolism

Ch. 25: Lipids Metabolism. Digestion of Triacylglycerols. Lipids in our diet make us feel full after eating; lipids in food slow digestion. Lipids are packaged as lipoproteins for transport. Arrival of chyme in the small intestine triggers release of pancreatic lipases and bile.

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Chapter 5 Photosynthesis and Cellular Respiration

Chapter 5 Photosynthesis and Cellular Respiration. Section 5-1. Directly/indirectly, almost all energy in LTs needed for metabolism comes from the sun . Section 5-1. Building Molecules that Store Energy: Photosynthesis : process by which light energy is converted to chemical energy.

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Glycolysis

Glycolysis. Glucose ? pyruvate (+ ATP, NADH) Preparatory phase + Payoff phase Enzymes Highly regulated (eg. PFK-1 inhibited by ATP) Form multi-enzyme complexes Pass products/substrates along: efficiency. Overall balance sheet. Glucose + 2NAD + + 2ADP + 2P i ?

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Chapter 21 Biosynthetic Pathways

Chapter 21 Biosynthetic Pathways. Introduction. In most living organisms, the pathways by which a compound is synthesized are usually different from the pathways by which it is degraded; two reasons are

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Cellular Respiration

Cellular Respiration. Cellular Respiration. Cellular Respiration is a process by which cells gain energy from organic molecules. Cellular Respiration. C 6 H 12 O 6 + 6O 2 ? 6CO 2 + 6H 2 O + ATP Sugar + Oxygen ? Carbon Dioxide + Water + ENERGY. Cellular Respiration. Cellular Respiration.

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Warm Up

Warm Up. Does glycolysis require a specialized organelle. What are the outputs of glycolysis? How many carbons does pyruvate have? Only 2 ATP are produced from glucose during glycolysis. Where is the rest of the energy stockpiled?. Figure 6.3. ELECTRON TRANSPORT AND

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RESPIRATION Chapter 9 VOCAB REVIEW

RESPIRATION Chapter 9 VOCAB REVIEW. Type of fermentation shown below: Pyruvic acid + NADH ? alcohol + CO 2 + NAD +. Alcoholic fermentation. Unit used to measure energy in food (= 1000 calories). Calorie (capitalized). Type of fermentation shown below:

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Krebs Cycle

Krebs Cycle. Monika Siekelova. Anaerobic and Aerobic Respiration. Glycolosis can occur without oxygen The basis of anaerobic cell respiration Pyruvate produced in glycolysis can only be oxidized further using energy if oxygen is present. This occurs in the mitochondrion

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