Consider this chemical reaction: ATP + H2O --> ADP+ Pi. Identify the FALSE statement regarding this reaction. Select the best option of those available. It can be coupled to less energetically-favorable reactions during biosynthesis It consumes energy It is reversible It involves the cleavage of a high-energy phosphate bond

Consider this chemical reaction: ATP + H2O --> ADP+ Pi. Identify the FALSE statement regarding this reaction. Select the best option of those available. It can be coupled to less energetically-favorable reactions during biosynthesis It consumes energy It is reversible It involves the cleavage of a high-energy phosphate bond

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter24: Biochemistry

Section: Chapter Questions

Problem 34GQ: The first step of the metabolic process known as glycolysis is the conversion of glucose to glucose-...

See similar textbooks

Similar questions

When the following reaction reached equilibrium the concentration of glucose 1-phosphate is 34mM, and the concentration of glucose 6-phosphate is 190mM. At standard temperatures and pressure, calculate the Keq and the ΔGo' glucose 6-phosphate <---(phosphoglucoisomerase)---> glucose 1-phosphate Keq= ΔGo' =
One of these reactions is a reductive amination. Write the oxidation states ( a number) next to each boxed carbon. Which reaction is a reductive amination? A or B Identify the oxidized and reduced states of the coenzymes
In the citric acid cycle, a - ketoglutarate dehydrogenase catalyzes the reaction from a - ketoglutarate to Succinyl CoA. Given this reaction, calculate for the enthalpy of formation of the product using (a) Hess's Law, (b) standard enthalpies of formation and (c) mean bond enthalpies. Show your complete solution. COA-S OOC CH2 CH2 + NAD++ COA + CO2 + NADH CH2 a-ketoglutarate CH2 dehydrogenase COO a-ketoglutarate COO Succinyl CoA
GLYCOLYSIS: 1A) Starting with glucose (in the open-chain Fisher projection), draw out the molecular structures for each step of glycolysis. For each step, include the name of the enzyme that catalyzes the reaction. 1B) What is the net reaction of glycolysis? CITRIC ACID CYCLE: 2A) Starting with acetyl-coenzymeA and oxaloacetate, draw out the molecular structures for each step of the citric acid cycle. For each step, include the name of the enzyme that catalyzes the reaction. 2B) What is the net reaction of the citric acid cycle? What happens to each product? OXIDATIVE PHOSPHORYLATION: 3A) Thoroughly explain the biological significance of NADH/H* and FADH2 and their roles in oxidative phosphorylation. 3B) Describe and diagram the general pathway of the electrons from NADH/H+ and FADH₂ to O₂ during the electron transport chain. 3C) What is "chemiosmotic coupling", and what is its relationship to ATP synthesis? 3D) During oxidative phosphorylation, what is oxidized and what is…
. Each gram of mammalian skeletal muscle consumes ATP at a rate of about 1x 10-3 mol/min during contraction. Concentrations of ATP and creatine phosphate in muscle are about 4 mM and 25 mM, respectively, and the density of muscle tissue can be taken to be about 1.2 g/cm'. (a) How long could contraction continue using ATP alone? (b) If all creatine phosphate were converted into ATP and utilized as well, how long could contraction continue? (c) What do these answers tell you?
Refer to the following reaction. The substrate of this reaction is called through a mechanism called "Feed Forward Activation". (A) Phosphoenolpyruvate, Fructose 1,6-bisphosphate Lactate, NADH OPO₂²- ADP ATP J = 4 O H₂C H₂C 2-phosphoglycerate, AMP Glyceraldehyde 3-phosphate, ATP and the enzyme is activated by high conc. of
TPP is a coenzyme for transketolase, the enzyme that catalyzes the conversion of a ketopentose (xylulose- 5-phosphate) and an aldopentose (ribose-5-phosphate) to an aldotriose (glyceraldehyde-3-phosphate) anda ketoheptose (sedoheptulose-7-phosphate). Notice that the total number of carbons in the reactants and products is the same (5 + 5 = 3 + 7). Propose a mechanism for this reaction.
Oxaloacetate + ADP + Pi + H+ ---> Pyruvate + ATP + HCO3- ΔGo’ = 13.91 kJ/mol Lactate + NAD+ ---> Pyruvate + NADH + H+ ΔGo’ = 25.12 kJ/mol Oxaloacetate + GTP ---> Phosphoenolpyruvate + GDP + CO2 ΔGo’ = -28.40 kJ/mol HCO3- + H+ ---> CO2 + H2O ΔGo’ = -41.45 kJ/mol GDP + ATP ---> GTP + ADP ΔGo’ = -0.003 kJ/mol _________________________________________________________________________________________________________________ Lactate + NAD+ + 2ATP + H2O ---> Phosphoenolpyruvate + NADH + 2ADP + Pi + 3H+ From the above information, calculate theΔGo’ for the overall reaction shown…
Oxaloacetate + ADP + Pi + H+ ---> Pyruvate + ATP + HCO3- ΔGo’ = 13.91 kJ/mol Lactate + NAD+ ---> Pyruvate + NADH + H+ ΔGo’ = 25.12 kJ/mol Oxaloacetate + GTP ---> Phosphoenolpyruvate + GDP + CO2 ΔGo’ = -28.40 kJ/mol HCO3- + H+ ---> CO2 + H2O ΔGo’ = -41.45 kJ/mol GDP + ATP ---> GTP + ADP ΔGo’ = -0.003 kJ/mol _________________________________________________________________________________________________________________ Lactate + NAD+ + 2ATP + H2O ---> Phosphoenolpyruvate + NADH + 2ADP + Pi + 3H+ From the above information, calculate the Keq’ for the overall reaction shown…
coenzymes1 Which coupled reaction properly indicates the role of the coenzyme as an oxidizing agent? NADH NAD+H A) CH, — CH, — CH, — оН CH,-CH,-C-H NAD NADH + H B) CH— CH, — CH, — ОН CH— CH, — С NAD NADH C) CH,-CH,-CH,-OH CH,-CH,-CH NADH NAD - H D) CH;-CH,-CH,-OH CH-CH- (IH Select ananswerand submit For keyboord navigaionuse the up.covmaro
Gluconeogenesis in humans involves many of the enzymes of glycolysis working in a reverse direction, but utilizes four unique enzymes. (a) Draw these four reactions at pH 7, indicating the reactants and products, and the full name of the enzyme. You are required to draw the structures of the products and reactants for the first two reactions in gluconeogenesis and their full names but only provide the full names on the remaining two reactions. You do not have to draw the structures of any cofactors just use their abbreviations.
Jj.111.