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Topic: High energy phosphate

	High energy phosphate - Wikipedia, the free encyclopedia
		It can mean the compounds which contain these bonds, which include the nucleoside diphosphates and nucleoside triphosphates, and the high energy storage compounds of the muscle, the phosphagens.
		High energy phosphate bonds are pyrophosphate bonds, acid anhydride linkages, formed by taking phosphoric acid derivatives and dehydrating them.
		Often, high energy phosphate bonds are denoted by the character '~'.
	en.wikipedia.org /wiki/High_energy_phosphate (331 words)

	Phosphate - Wikipedia, the free encyclopedia
		Phosphates are the naturally occurring form of the element phosphorus, found in many phosphate minerals.
		Phosphates are often used in laundry detergent as a water softener, but, because of algae boom-bust cycles tied to emission of phosphates into watersheds, phosphate detergent sale or usage is restricted in some areas.
		In agriculture phosphate refers to one of the three primary plant nutrients, and it is a component of fertilizers.
	en.wikipedia.org /wiki/Phosphate (1092 words)

	Adenosine triphosphate - Wikipedia, the free encyclopedia
		It is produced as an energy source during the processes of photosynthesis and cellular respiration and consumed by many enzymes and a multitude of cellular processes including biosynthetic reactions, motility and cell division.
		Thus, energy is produced from the new bonds formed between ADP and water, and between phosphate and water.
		The energy used by human cells requires the hydrolysis of 100 to 150 moles of ATP daily which is around 50 to 75 kg.
	en.wikipedia.org /wiki/Adenosine_triphosphate (3294 words)

	energy metabolism in cells
		This bond has high energy because both of the phosphate groups contain several oxygen atoms, and the electronegative oxygen atoms tend to pull electrons toward themselves.
		A basic goal of the respiratory pathways is to release the chemical energy of glucose or other nutrients and recapture that energy in the high energy bonds of ATP molecules.
		The slow step-wise controlled release of energy during glycolysis and respiration allows a significant proportion of the energy of the sugar to be converted to energy stored in ATP molecules.
	campus.northpark.edu /biology/cell/energymetab.html (1201 words)

	Adenosine triphosphate Summary
		The free energy of hydrolysis for this reaction is 36.12 kJ/mol and it occurs, for example, in the course of purine synthesis.
		It is produced as an energy source during the processes of photosynthesis and cellular respiration.
		The net change in energy of the decomposition of ATP into ADP and an inorganic phosphate is -12 kCal / mole in vivo (inside of a living cell) and -7.3 kCal / mole in vitro (in laboratory conditions).
	www.bookrags.com /Adenosine_triphosphate (2732 words)

	Bio200 Homework Assignment #6
		This process requires 2 high-energy phosphate bonds per amino acid, or 900 high-energy bonds total.
		NOTE: For the exam, you will need to be able to describe where in the process of translation these high-energy bonds are used, not simply to remember that there are 4 per amino acid.
		This is still about 21,000,000 high-E phosphate bonds per minute.
	www.lclark.edu /~bkbaxter/200lecture/homework/homework6key.htm (672 words)

	Blood Energy
		The high energy phosphorus provided by Foliphos maximises endurance by ensuring that ATP is able to be replenished rapidly, and also counters the high loss of phosphorus from working muscles.
		High energy phosphate compounds (glycerophosphates) are vital for proper muscle function and endurance, to ensure that ATP is readily available to fuel muscles over long races, without excess lactic acid accumulation and fatigue.
		The high energy phosphate released by ATP for maximal exertion helps to buffer the rise in muscle and blood acidity, but this phosphate needs to be recycled to produce more available energy immediately.
	www.ranvet.com.au /blood.htm (626 words)

	Physiology & Psychology: Performance Benchmarks -- Energy Expenditures
		For the first minute of skiing, the skier uses 30% of aerobic energy (Type I muscle fibers) and at one hour, the skier is using 98% of aerobic energy.
		To estimate a person's resting energy expenditure in terms of total kilocalories (kcal), the appropriate BMR value should be multiplied by the surface area computed from height and weight.
		The energy cost of many activities has been determined, usually by monitoring the oxygen consumption during the activity to determine an average oxygen uptake per unit of time.
	btc.montana.edu /olympics/physiology/pb04.html (751 words)

	The Science Creative Quarterly » CREATINE: FROM MUSCLE TO BRAIN
		Energy is handled within cells in the form of high energy phosphate bonds.
		It is this involvement in the cellular energy metabolism that has led to the idea that getting more creatine into muscles will improve strength and endurance, which, incidentally is true mostly for exercises associated with repeated bouts of activity [1].
		Therefore, the principle of nuclear magnetic spectroscopy is to place a sample into a magnetic field, bang the nuclei with an electromagnetic impulse, and measure their frequencies of oscillation by detecting electromagnetic waves emitted during the course of the oscillations.
	www.scq.ubc.ca /?p=194 (2509 words)

	High energy phosphate (Site not responding. Last check: 2007-10-20)
		It can mean the compounds which contain these bonds, which include the nucleoside diphosphates and nucleoside triphosphates,and the high energy storage compounds of the muscle, the phosphagens.
		Whenpeople speak of a high energy phosphate pool, they speak of the total concentration of these compounds withthese high energy bonds.
		These reactions are generally not allowed to go uncontrolled in the human cell, but generally are coupled to other processesneeding energy to drive them to completion.
	www.therfcc.org /high-energy-phosphate-117403.html (219 words)

	GLYCOLYSIS, GLUCONEOGENESIS AND THE PENTOSE PATHWAY
		The second reaction of this series, catalyzed by phosphoglycerate kinase, the high energy phosphate is transferred to ADP to yield 2 equivalents of ATP.
		The enolphosphate is a high energy phosphate and the source of the second substrate level phosphorylation reaction of glycolysis.
		Erythrocytes and the cells of the cornea are exposed to high concentrations of oxygen and are therefore prone to oxidative damage from a variety of oxygen radicals.
	www.biochem.arizona.edu /classes/bioc462/462b/glycolysis.html (2812 words)

	Bio200 Metabolism Supplement
		In other cases, the energy release is not great enough for this, and is released as heat instead.
		Often enough energy is released in this transfer to allow coupling of this oxidation to the formation of a high-energy phosphate bond.
		Hydrolysis of a thioester yields enough energy to allow it to be coupled to the synthesis of ATP from ADP and phosphate (or GTP from GDP and phosphate, as happens in the Citric Acid cycle).
	www.lclark.edu /~bkbaxter/200lecture/metabolism_supplement.htm (688 words)

	Bodybuilding.com - Derek Beast Charlebois - Bioenergetics And Energy Release!
		The energy we use to perform actions, such as a sprint, etc. is acquired from the transfer of chemical energy.
		The energy we use to perform actions, such as a sprint, 5 k run, or typing on a keyboard, is acquired from the transfer of chemical energy.
		As the water begins to fall, the potential energy is transformed into kinetic energy, often referred to as the energy of movement.
	www.bodybuilding.com /fun/beast8.htm (1591 words)

	High energy phosphate (Site not responding. Last check: 2007-10-20)
		It can mean the compounds which these bonds which include the nucleoside diphosphates nucleoside triphosphates and the high energy storage of the muscle the phosphagens.
		As a the hydrolysis of these bonds is exothermic under physiological conditions releasing energy.
		These reactions are generally not allowed to uncontrolled in the human cell but generally coupled to other processes needing energy to them to completion.
	www.freeglossary.com /High_energy_phosphate (388 words)

	Hi
		'''High energy phosphate''' can mean one of a couple things: * It can mean the phosphate-phosphate bonds formed when compounds such as adenosine diphosphate and adenosine triphosphate are created.
		As a consequence, the hydrolysis of these bonds is exothermic reactionexothermic under physiological conditions, releasing energy.
		So, high energy phosphate reactions can * provide energy to cellular processes, to allow them to run * by coupling processes to a particular nucleoside, allow for regulatory control of the process * drive the reaction ''to the right'', by taking a reversible process and making it irreversible.
	www.gateserver.net /Topicdetails.aspx?Topicid=45081&name=&catid=219&topicname=High_energy_phosphate (255 words)

	High energy phosphate (Site not responding. Last check: 2007-10-20)
		Abacci > Abaccipedia > Hi > High energy phosphate
		* It can mean the compounds which contain these bonds, which include the nucleoside diphosphates and nucleoside triphosphates, and the high energy storage compounds of the muscle, the phosphagens.
		Comparison of energy requirements for production of high-nitrogen mixed fertilizer by the nitrophosphate route with the urea-ammonium phosphate route ([Circular] Z)
	www.abacci.com /wikipedia/topic.aspx?cur_title=High_energy_phosphate (274 words)

	Mathews/van Holde/Ahern 3rd Edition (Site not responding. Last check: 2007-10-20)
		High levels of ADP formed in the myofibrils during contraction favor the reverse reaction namely, resynthesis of ATP - at the expense of creatine phosphate cleavage to creatine.
		Whether energy is stored as ATP or as a compound like creatine phosphate, that energy must eventually be made available as chemical energy, if it is to drive the synthesis of other high-energy compounds.
		Transduction to mechanical energy occurs in muscle contraction or ciliary motion, whereas transduction to electrical energy occurs in membrane depolarization or in pumping ions across a membrane.
	oregonstate.edu /dept/biochem/hhmi/hhmiclasses/bb450/winter2002/ch03/creatinp.htm (357 words)

	BCH 4053 Biochemistry I (Site not responding. Last check: 2007-10-20)
		The key point is that the energy required to break a high energy bond is less than the energy released when a new, lower-energy bond is formed (and such coupled reactions occur with a net release of energy and therefore represent an process with a -
		It can be phosphorylated by some of the higher energy phosphate molecules (which are synthesized in the breakdown of fuel molecules) i.e.
		Thus, a high energy phosphate bond is broken in a hydrolysis reaction with water.
	wine1.sb.fsu.edu /BCH4053/Lecture05/Lecture05.htm (1867 words)

	Summary: Effects of chronic beta-receptor blocker treatment on cardiac high-energy phosphate metabolism in heart failure
		One hypothesis is that beta-blockers improve the energetic balance of the heart and act, at least in part, by preserving high-energy phosphate metabolism.
		In experimental heart failure caused by chronic coronary ligation in the rat, the beta-blocker bisoprolol significantly improves cardiac function in parallel to preservation of phosphocreatine stores and intracellular ATP transfer rates, suggesting improved cardiac energetics as one mechanism of action.
		Currently, a larger systematic placebo-controlled clinical trial of the functional and energetic effects of bisoprolol in dilated cardiomyopathy, followed sequentially by MR imaging and spectroscopy, is underway, which, when completed, should reveal whether beta-blockers in fact preserve high-energy phosphate metabolism in human heart failure.
	www.kup.at /journals/summary/106.html (207 words)

	The Energy Metabolism in Skeletal Muscle Page
		When the muscle is well rested and nourished, creatine phosphokinase will store some extra energy away in the form of high energy phosphate bonds in creatine phosphate (creatine monophosphate).
		In times of need, creatine phosphokinase is activated nearly instantly to break the high energy phosphate bond of creatine monophosphate and use the energy released to add another high energy phosphate bond onto ADP to give new ATP.
		Notice that peak power generated is not as high as the forces that can be generated when we recruit more anaerobic fibers, but take note of the fact that aerobic activity can maintain activity for long periods of time...
	faculty.etsu.edu /currie/muscmetab.htm (1649 words)

	The TCA Cycle
		In cells or tissues with a high energy charge pyruvate is directed toward gluconeogenesis, but when the energy charge is low pyruvate is preferentially oxidized to CO and H
		Since the energy metabolism of highly aerobic tissues such as the brain is dependent on normal conversion of pyruvate to acetyl-CoA, aerobic tissues are most sensitive to deficiencies in components of the PDH complex.
		In this process a high energy enzyme--phosphate intermediate is formed, with the phosphate subsequently being transferred to GDP.
	web.indstate.edu /thcme/mwking/tca-cycle.html (2336 words)

	High energy phosphate - Encyclopedia, History, Geography and Biography
		High energy phosphate - Encyclopedia, History, Geography and Biography
		The AMP is regenerated to ATP in two steps, with the equilibrium reaction ATP + AMP ↔ 2ADP, followed by regeneration of ATP by the usual means, oxidative phosphorylation or other energy-producing pathways such as glycolysis.
		This encyclopedia, history, geography and biography article about High energy phosphate contains research on
	www.arikah.com /encyclopedia/High_energy_phosphate (333 words)

	adenosine triphosphate \| phosphocreatine (Site not responding. Last check: 2007-10-20)
		Your muscles need energy to clear the bus bumper, but they can’t wait for your heart to get revved up, for a cascade of oxygen-rich blood to hurry through your arteries or for the incoming oxygen to assist with the breakdown carbohydrate or fat, in order to release the required amount of energy.
		The energy contained in any food you eat – carbohydrate, protein or fat – must be stored as energy within adenosine triphosphate (ATP) molecules before it can be used by any cell in your body.
		The ubiquity of creatine kinase in muscle tissue explains why high levels of creatine kinase in the blood are associated with muscle breakdowns, including the kinds of catastrophes which can occur in cardiac muscle tissue after a heart attack.
	www.pponline.co.uk /encyc/adenosine-triphosphate.html (3179 words)

	ThunderZ - Sports Nutrionals - Transformation Enzymes - Products
		Adenosine triphosphate is the common energy source used for all biological work done within cells.
		In addition to ATP, skeletal muscle has another high-energy phosphate, called creatine phosphate (CP), which can be used for the resynthesis of ATP Physical activity in the form of muscular work or exercise demands large quantities of immediate energy.
		Energy and nucleic acid metabolism in immune cells also depends on an adequate supply of glutamine.
	www.thunderz.com /products_details.asp?itemno=19 (707 words)

	MetabolismLecuture
		Animal cells extract energy from their environment by oxidation of carbohydrate, protein, and fat to carbon dioxide and water.
		The process by which the energy contained in these nutrients is converted to high-energy phosphate bonds in ATP occurs in 4 major steps: glycolysis, formation of Acetyl CoA, Kreb’s cycle, and the electron transport system.
		Few cellular compounds have enough energy to support substrate-level phosphorylation–three important ones are phosphoenolpyruvate and 1,3-bisphosphoglycerate, both intermediates in glycolysis, and creatin phosphate found in muscle cells.
	www.biosci.ohio-state.edu /~patches/eeob410/metabolismlecture.htm (1224 words)

	Muscle Metabolic Systems in Exercise
		When one phosphate radical is removed from the molecule, 7300 Calories of energy is released which can be be used to energize the contractile process.
		The high energy phosphate bond of phosphocreatine has more energy than the bond of ATP- 10,300 calories per mole, in contrast to ATP's 7300.
		An interesting characteristic of energy transfer from phosphocreatine to ATP is that it occurs within a small fraction of a second.
	predator.pnb.uconn.edu /~wwwpnb/virtualtemp/muscle/exercise-folder/muscle.html (845 words)

	BIFC 3521: Lecture
		Therefore, the free energy (G) is zero and the standard free energy is directly proportional to the equilibrium constant (Keq) (eqn 2).
		Reactions are said to be coupled when a thermodynamically unfavorable reaction (the free energy value is positive) is driven by coupling the reaction to a thermodynamically favorable reaction (the free energy value is negative).G for a metabolic pathway is the sum of the G values for each individual enzyme reaction.
		Phosphate groups accomplish this because they have a high negative charge associated with them readily cross cell membranes.
	dwb.unl.edu /Teacher/NSF/C11/C11Links/www.fordham.edu/Biochem_3521/lect14/lect14.html (3809 words)

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