End of Chapter_Problem 60a INCORRECT; see section 13.3 Use AG and Keq for the glycogen synthetase reaction (-13.4 kJ. mol-¹ and 220, respectively) as well as information in the chapter regarding the AG" values for the steps involved in glycogen synthesis to calculate a AG" value for the overall reaction shown below. Use 3 significant figures. glucose-1-phosphate + glycogen (n) + UTP + H₂O →glycogen (n+1) + UDP + 2P; AGO¹ = i ! kJ.mol-1 (Tolerance is +/- 2%) eTextbook and Media

After reviewing the reactions of glutamine formation on page 88 (old edition page 90), explain why each of the following statements concerning the last reaction (or Overall reaction) is true. (Select all that apply) Glutamic acid + NH glutamine; AG" =+3.4 kcal/mole; ATP hydrolyzed in 2 steps 1. This endergonic reaction occurs in the cell because glutamic acid is actually converted to glutamine in 2 sequential reactions, both of which are exergonic: a. 1 reaction: Glutamic acid + ATP ghutamyl phosphate + ADP b. 2nd reaction: Glutamyl phosphate + NHglutamine + Pi 2. Overall reaction: Glutamic acid+ATP+NH: glutamine + ADP+P; AG -3.9 kcal/mole If all reactants and products were at standard conditions at the beginning of an experiment, after a period of time, the [NH3]/[ADP] ratio would decrease assuming enzyme glutamine synthase is present. If the reaction were written in in reverse, its AGO would be 3.9 kcal/mol. none of the remaining In the cell, it is possible for glutamine to be formed…

List all the reducing sugar you learnt List all the non-reducing sugars you learnt. Which of the following would be the correct classification of the carbohydrate shown below? CH₂OH H CH OH H H OH H a. monosaccharide c. polysaccharide d. starch e. cellulose O B. Amylose CH₂ C. Amylopectin -0. H OH H A) disaccharides. B) polysaccharides. C) chlorosaccharides. D) alcohol sweeteners. E) noncarbohydrate sweeteners. H OH 13. Aspartame and Saccharin® are two examples of OH Identify the polysaccharides and types of glycosidic bonds in each of the following: A. Cellulose 130 Identify the polysaccharide_ What is the glycosidic linkage? When this polysaccharide is hydrolysed in aqueous acid solution, what is formed? H 11. TEORE D 11 ANTE 114494 H CHAR -1 ( 11 CR H 11 11 11 B. Maltose ATRORE 43 18 OH 11 C. Sucrose 11 1)-( HO '11 Melibiose is a disaccharide that is 30 times sweeter than sucrose. A. What are the monosaccharide units in melibiose? D 11 03 H DIE I B. What type of glycosidic bond…

1. The reaction catalyzed by aldolase splits fructose-1,6-bisphosphate (F16BP) into glyceraldehyde-3-phosphate (G3P) and dihydroxyacetone phosphate (DHAP). The AG°" for the reaction is 23.8 kJ/mole. If the concentrations of G3P and DHAP are 2.5 mM and 1 mM, respectively, what concentration of F16BP is needed for the reaction to be at equilibrium in a human cell?

Which pairs of molecules are interconvertible via mutarotation? O a. D-glucose and D-fructose O b. D-glucose and D-galactose O c. D-glucose and D-glucosamine O d. a-D-glucose and B-D-glucose

1. Carbohydrates classification. 2. Write down the reactions: a) α,D-Glucopyranose + C2H5OH → b) D-Glucose + [Ag(NH3)2]+ → c) D-Glucopyranose + (CH3CO)2 O → d) D-Glucopyranose + CH3I → e) D-Glucose + HNO3 → f) D-Glucose + H2 → g) Lactose formation h) Sucrose hydrolysis 3. Write down the formula of β,D-galactopyranose

4. Draw the structures for the oxidation of the following carbohydrates. a) C-H 主 H CH CHOH erythrose b) [0] Ho CHOH glicese 5. Draw the structures for the reduction of the following carbohydrates. Ho CHOH Cat. C=0 + Hz It. OH CHOH olwollol enythrulse b) Cat. Ho CHCH gucose

1) Phenyl propyl ether can be obtained by reacting? 2) Raffinose is A trisaccharide which is made up of two sugar molecules of aldoses and one sugar molecule of ketoses? True or false!

17. Draw the 2-amino sugar and the aldonic acid that can be formed from the following monosaccharide. || C-H H- -OH H -OH HO- -H H -OH CHOH D-gulose

Q2 CH,OH CH,OPO,2- H H OH H OH 0-PO,2- но но OH H. OH OH Glucose-1-phosphate Glucose-6-phosphate Calculate the standard free-energy change (AG°) fo the reaction catalyzed by the enzyme phosphoglucomutase. When at standard temperature (25 °C) and pressure, the equilibrium of each molecule is 1 mM glucose 1-phosphate and 19 mM glucose 6-phosphate. HINT: at 25 °C, RT = 2.479 kJ/mol