Mechanisms for the three steps involved in the conversion of 3-phosphoglycerate into glyceraldehyde-3-phosphate, 1) Phosphorylation of 3-phosphoglycerate by treating with ATP to form 1,3- bisphosphoglycerate.2) Reaction of 1,3- bisphosphoglycerate with the thiol group on the enzyme to give an enzyme-bound thioester 3) Reduction of the enzyme bound thioester with NADH, are to be proposed. Concept introduction: All the three steps involved in the conversion of 3-phosphoglycerate into glyceraldehyde-3-phosphate take place through two steps i) Attack of a nucleophile on either P or C and ii) Elimination of the leaving group. To propose: Mechanisms for the three steps involved in the conversion of 3-phosphoglycerate into glyceraldehyde-3-phosphate 1) Phosphorylation of 3-phosphoglycerate by treating with ATP to form 1,3- bisphosphoglycerate 2) Reaction of 1,3- bisphosphoglycerate with the thiol group on the enzyme to give an enzyme-bound thioester 3) Reduction of the enzyme bound thioester with NADH.

Question

The table includes macrostates characterized by 4 energy levels (&) that are equally spaced but with different degrees of occupation. a) Calculate the energy of all the macrostates (in joules). See if they all have the same energy and number of particles. b) Calculate the macrostate that is most likely to exist. For this macrostate, show that the population of the levels is consistent with the Boltzmann distribution. macrostate 1 macrostate 2 macrostate 3 ε/k (K) Populations Populations Populations 300 5 3 4 200 7 9 8 100 15 17 16 0 33 31 32 DATO: k = 1,38×10-23 J K-1

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Chapter 21.SE, Problem 41MP

Interpretation Introduction

Interpretation:

Mechanisms for the three steps involved in the conversion of 3-phosphoglycerate into glyceraldehyde-3-phosphate, 1) Phosphorylation of 3-phosphoglycerate by treating with ATP to form 1,3- bisphosphoglycerate.2) Reaction of 1,3- bisphosphoglycerate with the thiol group on the enzyme to give an enzyme-bound thioester 3) Reduction of the enzyme bound thioester with NADH, are to be proposed.

Concept introduction:

All the three steps involved in the conversion of 3-phosphoglycerate into glyceraldehyde-3-phosphate take place through two steps i) Attack of a nucleophile on either P or C and ii) Elimination of the leaving group.

To propose:

Mechanisms for the three steps involved in the conversion of 3-phosphoglycerate into glyceraldehyde-3-phosphate 1) Phosphorylation of 3-phosphoglycerate by treating with ATP to form 1,3- bisphosphoglycerate 2) Reaction of 1,3- bisphosphoglycerate with the thiol group on the enzyme to give an enzyme-bound thioester 3) Reduction of the enzyme bound thioester with NADH.

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The table includes macrostates characterized by 4 energy levels (&) that are equally spaced but with different degrees of occupation. a) Calculate the energy of all the macrostates (in joules). See if they all have the same energy and number of particles. b) Calculate the macrostate that is most likely to exist. For this macrostate, show that the population of the levels is consistent with the Boltzmann distribution. macrostate 1 macrostate 2 macrostate 3 ε/k (K) Populations Populations Populations 300 5 3 4 200 7 9 8 100 15 17 16 0 33 31 32 DATO: k = 1,38×10-23 J K-1

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In an experiment, the viscosity of water was measured at different temperatures and the table was constructed from the data obtained. a) Calculate the activation energy of viscous flow (kJ/mol). b) Calculate the viscosity at 30°C. T/°C 0 20 40 60 80 η/cpoise 1,972 1,005 0,656 0,469 0,356