Biochemistry
Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Chapter 18, Problem 12P
Interpretation Introduction

Interpretation:

To identify the oxidant and the reductant in the given reaction.

Concept introduction:

The redox reaction is the reaction that involves the gain and loss of electrons. This means that a redox reaction comprises both the reduction reaction and the oxidation reaction. During such reactions transfer of electrons take place, leading to change in the oxidation number of the atoms, molecules, or ions.

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Instructions. Given each set of information which may include common name(s) and the reaction catalyzed, you are required to identify the main class of the specific enzyme described. Name: citryl-CoA synthetase Reaction: ATP + citrate + CoA = ADP + phosphate + (3S)-citryl-CoA Name: D-xylulose reductase Reaction: xylitol + NAD+ = D-xylulose + NADH + H+ Name: cellobiose phosphorylase Reaction: cellobiose phosphate = α-D-glucose 1-phosphate + D-glucose Name: carbonic anhydrase Reaction: H2CO3 = CO2 + H2O Other info: The enzyme catalyzes the reversible hydration of gaseous CO2 to carbonic acid, which dissociates to give hydrogencarbonate above neutral pH. Name: pantoate activating enzyme Reaction: ATP + (R)-pantoate = AMP + diphosphate + (R)-pantothenate.
This is the ATP accounting question. You are limited to the carbon in the following molecules:   One xylulose 5-phosphate, One glyceraldehyde 3-phosphate, One sedoheptulose 7-phosphate, 1 Oxaloacetate, and 3 carbon dioxide   A) Disregard regulation completely regarding pathway activity, using only the enzymes of glycolysis, pentose phosphate pathway, and citric acid cycle, what is the maximum ATP one can generate with these molecules?          B) Disregard regulation completely regarding pathway activity, using only the enzymes of glycolysis, Calvin-               Benson-Bassham cycle, and citric acid cycle, what is the maximum ATP one can generate with these                     molecules (in this instance only, you also are given 3 ATP and note that you do NOT need to regenerate                   substrates for rubisco once you get through this enzyme).
In full details. Explain the significance of redox potentials formed by redox pairs in the electron transport chain.
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