QUESTION 1Table 15.1 Standard free energies of hydrolysis of some phosphorylatedcompoundsCompoundkJ molkçal mol-Phosphoenolpyruvate1,3-BisphosphoglycerateCreatine phosphate-61.9-14.8-49.4-11.8-43.1-10.3ATP (to ADP)-30.5- 7.3Glucose 1-phosphatePyrophosphateGlucose 6-phosphateGlycerol 3-phosphate- 5.0- 4.6- 3.3- 2.2-20.9-19.3-13.8- 9.2Table 15.1cte Se te2WH dFrom the table above select chemical compounds, which may be phosphorylated by ATP:O 1,3-BisphosphoglycerateO PyrophosphateO Glucose 1-phosphateO Creatine phosphateO PhosphoenolpyrovateO Glucose 6-phosphateO Glycerol 3-phosphate

The free energy change (∆Gº) of a chemical reaction is the amount of energy released in the…

Answered: From the table above select chemical…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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QUESTION 22 All of the following elements are involved in the signaling cascade that promotes glycogen breakdown EXCEPT: O ylic AMP dependent protein kinase A. Adenyl Cyclase Phospholipase C-y. Glycogen Phosphorylase Glycogen Phosphorylase Kinase
Question 9 The product of the oxidation of glyceraldehyde 3-phosphate is: O 2-phosphoglycerate O 1,3-biphosphoglycerate O phosphoenolpyruvate O fructose 1,6-biphosphate oxaloacetate Previc
Question 50 2 Points During glycolysis, catalyzes the breakdown of fructose-1, 6 bisphosphate to produce and glyceraldehyde-3-phosphate A triosephosphate isomerase; 1,3-bisphosphoglycerate B. aldolase; dihydroxyacetone phosphate. © fructose-1,6-bisphosphate; fructose-6-phosphate. enolase; phosphoenolpyruvate. E hexokinase; 3-phosphoglycerate d 10:21:5R PM
Question 26 Which of the following glycerophospholipid has a phosphate ester attached to a sugar moiety? O Phosphatidylcholine O Phosphatidylglucopyranoside Phosphatidylinositol O Phosphatidylethanolamine
Remaining V Ha Question 17 Triose phosphate isomerase catalyzes the conversion of Glyceraldehyde-3- phosphate to Dihydroxyacetone phosphate. Glyceraldehyde-3-P Dihydroxyacetone phosphate The Km of this enzyme for its substrate Glyceraldehyde-3-phosphate is 1.8 x 10 M. When [Glyceraldehyde-3-phosphate] = 30 uM the rate of the reaction (v) was 82.5 umol/mL/sec and the Vmax was 132 umol/mL/sec. Assuming 3 nanomoles/mL of enzyme was used ([Eotal = 3 nanomol/mL) the kcat for this enzyme is: Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 44000/sec b 1100/sec 88/min d. 120/hour e 11/min Im f 450000/sec g 52800/sec 175/sec
Question 20 of 25 The figure below illustrates what reactions of amino acids? coo C=0 CH₂ CH₂ =0 00 + NHⒸ Decarboylation Cystine formation Esterification Transamination Peptide bond formation Transmethylation NAD(P)H+H Oxidative deamination Amide formation NAD(P) H₂ +H₂O COO CH₂ I میں CH₂ COOⒸ ATP ADP +P₁ H₂N-CH NHO CH₂ CH₂ NH₂ 20
QUESTION 10 Which one of the following statements does NOT correctly describe the current state of the chymotrypsin-substrate complex below or the next mechanistic step that occurs? s,' G193 S195 NH NH R -NH R-NH HN- Ser-195 His-57 HN Asp-102 OA. This intermediate is part of a nucleophilic acyl substitution reaction. OB. In the next step His-57 protonates Ser-195. O C. In the next step His-57 activates a water molecule. O D. In the next step His-57 protonates the leaving group. OE. In the next step the N-terminal fragment of the original substrate departs.
Question 12 Which enzyme catalyzes the conversion of Cholesteryl ester to cholesterol and fatty acid? O Cholesteryl ester hydrolase Glycerol-3-phosphate oxidase Lipase Peroxidase
Question 29 The following sattements are true for glycogen. EXCEPT: O Like amylopectin, glycogen gives a red-violet color with iodine Glycogen is stored energy for animals Structure is branched but not as highly as amylopectin of starch Branching of a(1-→6) linkages every 8-12 residues
QUESTION 1 You have a crude lysate sample (CL) containing a mixture of six proteins (1, 2, 3, 4, 5, ẞ- galactosidase), and your goal is to obtain purified ẞ-gal. Some characteristics of these proteins are shown in the table below. Protein Alcohol dehydrogenase Carbonic anhydrase Insulin B chain Phosphorylase B Glutamic dehydrogenase B-galactosidase Concentration of ammonium sulfate (AS) required for precipitation Molecular Weight (kDa) Isoelectric point (pl) 45% 38 3.7 80% 65% 20% 30% 45% 28 4.8 4 5.3 98 68 49 9.5 115 5.3 You begin your purification by performing an ammonium sulfate (AS) precipitation. You add the appropriate concentration of AS to your CL sample, incubate overnight at 4°C, then centrifuge to generate a supernatant (AS-S) and pellet (AS-P). What concentration of AS will you use to precipitate ẞ-galactosidase? O 20% O 30% O 45% 65% O 80%
Question 13 Lantus differs from "normal" insulin in that: Select one: O a. The usual insulin molecule has been combined with zine isophane Ob. Aglycine has been substituted in at A21, and two new arginines have been added as B31 and B3a Oc. An aspartic acid has been substituted for proline at Ba8 O d. A"C-peptide" chain has been added O e. The proline at B28 and the lysine at Ba9 have been reversed
Question 4 If 32p – labeled (radioactive phosphate) inorganic phosphate were introduced to erythrocytes undergoing glycolysis which of the following molecules would you expect to detect 32 p in Glycolytic intermediates? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Fructose 1-6 bisphosphate b 3-Phosphoglyceraldehyde Dihydroxyacetone phosphate d 2-Phosphoglycerate e 1-3 bisphosphoglycerate f Phosphoenolpyruvate 3-Phosphoglycerate h Pyruvate i None of the above

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From the table above select chemical compounds, which may be phosphorylated by ATP: 1,3-Bisphosphoglycerate Pyrophosphate Glucose 1-phosphate Creatine phosphate Phosphoenolpyrovate Glucose 6-phosphate O Glycerol 3-phosphate O O O O O 0 O