Please don't provide handwriting solution The predicted thermodynamic yield for anaerobic oxidation of methanecoupled to sulfate reduction is -16.67 kJ/mole (under standard conditions).Which of the following can explain how ANME and SRB can make a livingeven when so little energy is available?High methane fluxes combined with high pressures that make the effectivemethane concentration higher than might be expectedThe ANME archaea consumes a waste product generated by the SRB whichallows it to gain more energyThe SRB consumes hydrogen which makes the methane oxidation morefavorable for the ANME archaeaThe SRB also oxidizes methane, which makes the overall energy yield higher.

Comparing two Reverse Methanogenesis Mechanisms of Sulfate-Dependant Anaerobic Methane Oxidation…

Answered: The predicted thermodynamic yield for…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter17: Metabolism: An Overview

Section: Chapter Questions

Problem 18P

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Under anoxic conditions, biological denitrification of waste water by activated sludge results in the conversion of nitrate to nitrogen gas. Sludge is microorganisms, and these microorganisms carry out this reaction, this is a biological reaction. When acetic acid provides the carbon source, the reaction can be represented as follows: 5CH3COOH + 8NO3 → 4N2+ 10CO2 + 6H20 + 8HO Acetic acid Nitrate a) Is the stoichiometric equation balanced? write down the number of atoms of each species on left side and also on the right side of this equation. b) In the absence of side reactions, what is the yield of nitrogen from acetic acid in g g1? c) A certain waste water contains 6.0 mM acetic acid and 7mM NaNO3. If 25% of the acetic acid and 15% of the nitrate (NO3) are consumed in other reactions (e.g, for growth of the microorganisms in the sludge), which is the limiting substrate in the denitrification reaction? d) For the situation described in part c), what mass of gaseous nitrogen (N2) in…
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You have evaluated the rate of aerobic degradation of organic matter in an industrial wastewater and found that it does not follow normal Monod kinetics. After some testing, you have found that the substrate degradation rate follows the following relationship instead: -rut = k0.5XaS0.5 where -rut = substrate utilization rate (mg/L•day) k = 4 (L/mg•d2) S = substrate concentration (mg/L) Xa = active microbial concentration (mg/L) You have also determined coefficients of bacterial growth on this substrate under aerobic conditions to be Y = 0.25 g VSSa/g substrate and b = 0.08/d. (VSSa, active volatile suspended solids) Estimate the effluent substrate concentration when treating the above wastewater in a CSTR (continuously stirred tank reactor) with recycle while operating at a θx (MCRT, mean cell residence time) of 4 day.
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In aerobic respiration, cells generate heat as they grow. The amount of heat generated by cells is proportional to the amount of oxygen they consume. Accordingly, it was found that 460 kJ is generated per gmol of O2 consumed. Suppose that you need to choose a fermenter for optimal growth of Bacillus subtilis cells. It is known that the maximum oxygen demand of B. subtilis is 100 mol m3 h1. A vendor offers you a reactor with a cylindrical shape (2.8 m in diameter) and 15 m³ volume. The reactor includes a cooling coil with 30 m length and a pipe diameter of 6 cm, through which. For practical purposes, power input by the rotating impeller inside the bioreactor can be neglected. Does this reactor meet the cooling requirements of your production process? Note: If you think you need more information than you are provided with here to solve this problem, use online resources to find the required information. In this case, please state your source clearly. Note: You may assume that the…
It is required to recover active extracellular enzymes from a completed fermentation mediumthat also consists of proteins (<200,000 molecular weight cut-off (MWCO)) and bacterial cells (1-2μm). A cross-flow 0.35 μm microfiltration (MF) with retentate recycled back to the fermenter willbe used over a period of 5 hours during which time flux is assumed to decline linearly. After 5 hours, assuming 95% of the bacteria are retained and given the additionalinformation below, what is the concertation of bacteria remaining in the fermenter and what area,in m2 , of MF membrane is needed? Initial bacterial concentration = 1.2 gdcw /L (dcw = dry cell weight)Volume of medium at the beginning = 15 m3Volume of medium left in the fermenter after 5 hours filtering = 1 m3Initial (starting flux) = 6.5 x 10-5 m sec -1Final flux (after 5 hours of filtering) = 3.9 x 10-5 m sec -
Trace the fate of the N atom during dissimilatory nitrate reduction, nitrification, denitrification, and the anammox reaction, and indicate whether each must occur in an oxic or anoxic environment
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