Consider the fates of intermediates that can be processed in the PPP, glycolysis andalcoholic fermentation pathways. Imagine that you perform experiments with a culture of brewer'syeast grown under anaerobic conditions, in the presence of an inhibitor of phosphoglucoseisomerase. When you add glucose as the sole nutrient to the inhibited culture, the yeast are able togrow and produce ethanol albeit at a slower rate than a control culture of uninhibited yeast. Explainhow it is that the yeast in the inhibited culture are able to use glucose to produce ethanol (e.g.,sketch out the steps involved)

Anaerobic respiration takes place in the absence of oxygen. In this process, glycolysis occurs and…

Answered: Consider the fates of intermediates…

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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Similar questions

Could you help propose a reasonable mechanism for the following biochemical transformation?
Identify where sugar oxidation, substrate-level phosphorylation, and the reduction of NAS+ occurs in glycolysis
The table below presents the total number of ATPS generated by glycolysis and the TCA cycle breakdown of glucose in eucaryotes, in which 3 ATPS are generated per NADH, and 2 ATPS per FADH,. Calculate the total number of ATPS generated in the circumstances given under (a) and (b) below by recreating the table below. Your answer should include a simple reproduction of the table below, but with the different numbers indicated by this problem statement. a. A eucaryote under aerobic conditions, except that the production of reduced NAD coincident with the isocitrate to a-ketoglutaratedoes not occur due to a protein translation error (otherwise, all parts of TCA cycle operate correctly); b. A procaryote under aerobic conditions; using the P/O ratio of 1.5 ATPS per NADH2 and 1.0ATP per FADH2. Total NADH FADH АТР АТР Glycolysis 2 2 6 Oxidative Decarboxylation of Pyruvate 2 TCA Cycle 6 2 2 24 Total 10 2 4 36 6.
Describe some basic details about fermentation- where does it occur within the cell? Is an ETC required for fermentation? where are some possible end products of fermentation? what important roles do pyruvate and acetaldehyde play? How does the energy (ATP) output compare to that of aerobic or anaeroobic respiration?
. In another key reaction in glycolysis, dihydroxyacetone phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate (GAP) Because ∆G°′ is positive, the equilibrium lies to the left. (a) Calculate the equilibrium constant and the equilibrium fraction of GAP from the above, at 37 °C. (b) In the cell, depletion of GAP makes the reaction proceed. What will ∆G be if the concentration of GAP is always kept at 1/100 of the concentration of DHAP?
How do alcohol and lactic acid fermentation differ other than their final product? (Hint: Look closely at the reduction reactions taking place in each pathway)
Please atleast answer this question ?
Propose structures for intermediates A and B in the scheme below. This three-step conversion is carried out by enzymes that require no redox cofactors (no FAD, NADH etc.) nor TPP. Which enzyme in the citric acid cycle has an activity most similar to enzyme 1? Which enzyme in the PPP or the citric acid cycle has an intermediate that bears similarity to intermediate B? H OH COO™ Enzl A Enz2 B Enz3 OH
coliis a species of bacteria that, under the appropriate conditions, can grow using fermentation, anaerobic respiration, or aerobic respiration. This is one example of how E. colihas a greater metabolic capability than we humans, who can only survive using aerobic respiration, and who can perform fermentation for short periods of time. Consider the relative energy yield and efficiency of these three processes. Imagine you grow three cultures of E. coli as follows: A: Fermentation B: Anaerobic respiration C: Aerobic respiration You provide each culture with sufficient glucose in order to get each culture to produce the same biomass, i.e., the same amount of E. coli cells. In order to accomplish this, which culture would need to consume the greatest amount of glucose? Group of answer choices A. Each culture would need to consume the same amount of glucose to produce the same biomass B: Aerobic respiration C: Anaerobic respiration D: Fermentation

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