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5-2 Necleotide Metabolism (pyrimidine) - Home
5-2 Necleotide Metabolism (pyrimidine) - Home

... phosphate with aspartate with the release of Pi •ATCase is the major site of regulation in bacteria; it is activated by ATP and inhibited by CTP •carbamoyl phosphate is an “activated” compound, so no energy input is needed at this step ...
Russell, MJ, Hall, AJ, and Mellersh, AR, 2003
Russell, MJ, Hall, AJ, and Mellersh, AR, 2003

Glucose-6-P to Fructose-6-P
Glucose-6-P to Fructose-6-P

... • First step in glycolysis • Large negative deltaG • Hexokinase is regulated - allosterically inhibited by (product) glucose-6-P • Corresponding reverse reaction (Gluconeogenesis) is catalyzed by a different enzyme (glucose-6phosphatase) • Is it the committed step in glycolysis ? ...
Cellular Respiration
Cellular Respiration

... - 1 FADH2 ...
Pyruvate - Moodle NTOU
Pyruvate - Moodle NTOU

... §  Electron transfer in the electron transport chain causes proteins to pump H+ from the mitochondrial matrix to the intermembrane space §  H+ then moves back across the membrane, passing through the protein complex, ATP synthase §  ATP synthase uses the exergonic flow of H+ to drive phosphorylat ...
Chapter 20 TCA Cycle Bridging Reaction: Pyruvate Ž Acetyl-CoA
Chapter 20 TCA Cycle Bridging Reaction: Pyruvate Ž Acetyl-CoA

... The NADP + isozyme was the first discovered. It is more easily measured because the NAD+ enzyme requires ADP as an allosteric activator. In very old biochemistry textbooks, you may see NADPH as a product of this reaction. Malic enzyme and 6phosphogluconate dehydrogenase, along with the NADPH form of ...
Chapter 20 TCA Cycle Bridging Reaction: Pyruvate Ž Acetyl-CoA
Chapter 20 TCA Cycle Bridging Reaction: Pyruvate Ž Acetyl-CoA

... The NADP + isozyme was the first discovered. It is more easily measured because the NAD+ enzyme requires ADP as an allosteric activator. In very old biochemistry textbooks, you may see NADPH as a product of this reaction. Malic enzyme and 6phosphogluconate dehydrogenase, along with the NADPH form of ...
Chapter 9
Chapter 9

...  Electron transfer in the electron transport chain causes proteins to pump H+ from the mitochondrial matrix to the intermembrane space  H+ then moves back across the membrane, passing through the protein complex, ATP synthase  ATP synthase uses the exergonic flow of H+ to drive phosphorylation of ...
Structure-Guided Site-Directed Mutagenesis of the Bacterial ATP
Structure-Guided Site-Directed Mutagenesis of the Bacterial ATP

Selected Solutions to End of Chapter 13 Problems
Selected Solutions to End of Chapter 13 Problems

... below, -32.5kJ/mole in the EOC problem) which is clearly more than ATP + H2O  ADP + Pi (30 kJ/mole) which means the usually ATP hydrolysis reaction can not drive the synthesis of acetyl-CoA from acetate + CoA. So, now check out Table 13-6, see below.. The ΔGo’ for ATP + H2O  AMP + PPi is -45.6 kJ/ ...
Chapter 8 Cellular Respiration
Chapter 8 Cellular Respiration

... Chapter 8 Cellular Respiration 8.4 Inside the Mitochondria - Kreb’s Cycle Because oxygen is the last hydrogen acceptor, and ADP has a phosphate added, this process is called oxidative phosphorylation. Occurs on membrane of mitochondrial cristae ...
Ch13.doc
Ch13.doc

20 Tricarboxylic Acid Cycle
20 Tricarboxylic Acid Cycle

... Krebs first formulated its reactions into a cycle. It is also called the “citric acid cycle” because citrate was one of the first compounds known to participate. The most common name for this pathway, the tricarboxylic acid or TCA cycle, denotes the involvement of the tricarboxylates citrate and iso ...
Metabolism
Metabolism

... of the mitochondria into the intermembrane space (proton pump) ...
NOTES: Ch 9, part 4
NOTES: Ch 9, part 4

... ● Catabolic pathways funnel electrons from many kinds of organic molecules into cellular respiration ● Glycolysis accepts a wide range of carbohydrates ● Proteins must be digested to amino acids; amino groups can feed glycolysis or the Krebs cycle ● Fats are digested to glycerol (used in glycolysis) ...
CHAPTER-IV LIPID METABOLISM BETA
CHAPTER-IV LIPID METABOLISM BETA

... Beta-oxidation is the process by which fatty acids, in the form of acyl-CoA molecules, are broken down in mitochondria and/or peroxisomes to generate acetyl-CoA, the entry molecule for the citric acid cycle. The beta oxidation of fatty acids involve three stages: 1. Activation of fatty acids in the ...
The citric acid cycle is the
The citric acid cycle is the

... from pyruvate (from glycolysis) or from oxidation of fatty acids. • In the process, metabolic energy is captured in the form of ATP, NADH, and enzyme-bound FADH2 (symbolized as [FADH2]). ...
2 Pyruvate
2 Pyruvate

... The Pathway of Electron Transport  The electron transport chain is located in the inner membrane (cristae) of the mitochondrion  Most of the chain’s components are proteins, which exist in multiprotein complexes  The carriers alternate reduced and oxidized states as they accept and donate electr ...
1 22,25 October 2004 Physiology of Locomotion R. B. Huey I. Some
1 22,25 October 2004 Physiology of Locomotion R. B. Huey I. Some

Photocatalysis on TiOn Surfaces: Principles, Mechanisms, and
Photocatalysis on TiOn Surfaces: Principles, Mechanisms, and

... chemists, physicists, and chemical engineers. Such studies are often related to energy renewal and energy storage.2-6 In recent years, applications to environmental cleanup have been one of the most active areas in heterogeneous photocatalysis. This is inspired by the potential application of TiOz-b ...
mitochondrial biogenesis during
mitochondrial biogenesis during

... exclude an increase in the translocation of external ATP through the mitochondrial membrane . Fig . 7 shows the time-course of [3H]UTP incorporation into RNA . Very small differences in the rate of incorporation were found for the different stages of development of the cyst . Whether this result ref ...
Active Transport of Uridine Through a Liquid Organic Membrane
Active Transport of Uridine Through a Liquid Organic Membrane

Effects of oxygen on the growth and metabolism of Actinomyces
Effects of oxygen on the growth and metabolism of Actinomyces

Production of lactic acid
Production of lactic acid

... Well, it depends on your circumstance and goals. Most of us are non-competitive or non-elite active individuals, who just want to exercise to gain health benefits, feel good and possibly lose weight. Aerobic exercise conditions enable you to exercise for long periods of time, potentially benefiting ...
Chapter 20 TCA Cycle Bridging Reaction: Pyruvate → Acetyl-CoA
Chapter 20 TCA Cycle Bridging Reaction: Pyruvate → Acetyl-CoA

... The NADP + isozyme was the first discovered. It is more easily measured because the NAD+ enzyme requires ADP as an allosteric activator. In very old biochemistry textbooks, you may see NADPH as a product of this reaction. Malic enzyme and 6phosphogluconate dehydrogenase, along with the NADPH form of ...
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Electron transport chain



An electron transport chain (ETC) is a series of compounds that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane. This creates an electrochemical proton gradient that drives ATP synthesis, or the generation of chemical energy in the form of adenosine triphosphate (ATP). The final acceptor of electrons in the electron transport chain is molecular oxygen.Electron transport chains are used for extracting energy via redox reactions from sunlight in photosynthesis or, such as in the case of the oxidation of sugars, cellular respiration. In eukaryotes, an important electron transport chain is found in the inner mitochondrial membrane where it serves as the site of oxidative phosphorylation through the use of ATP synthase. It is also found in the thylakoid membrane of the chloroplast in photosynthetic eukaryotes. In bacteria, the electron transport chain is located in their cell membrane.In chloroplasts, light drives the conversion of water to oxygen and NADP+ to NADPH with transfer of H+ ions across chloroplast membranes. In mitochondria, it is the conversion of oxygen to water, NADH to NAD+ and succinate to fumarate that are required to generate the proton gradient. Electron transport chains are major sites of premature electron leakage to oxygen, generating superoxide and potentially resulting in increased oxidative stress.
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