Imagine you are trying to use an organism to remove organic matter in a wastewater treatment plant (i.e., poop). You would like to maximize the amount of waste consumed while also minimizing the amount of cells produced.   Assuming these organisms exist and all other things are equal, what combination of chemoorganotrophic organism and environment would make the most sense to use? An organism that only has the Entner-Duoduroff pathway under anaerobic conditions. This was a trick question – the organism would have to be a chemolithotroph since it is consuming a chemical. An organism that only has the Entner-Duoduroff pathway under aerobic conditions. An organism that only has the Embden Meyer Parnas pathway under anaerobic conditions. An organism that only has the Embden Meyer Parnas pathway under anaerobic conditions.

Assuming all genes involved in the metabolic pathway have been sequenced from various microorganisms, propose an isotope-based experiment that would allow you to determine which bacterial species in the water sample could oxidize the hydrocarbon hexane.

The following image is a schematic of the metabolic processes occurring in a plant contained in a closed container.   A=Light Dependent reactions B=Glycolysis C=Light Independent Reactions D=Kreb's cycle E=electron transport chain   2a) Use the figure above to explain the conditions in which the oxygen concentration remains constant in the container. b) 2-carboxyarabinitol-1,5-bisphosphate (CABP) is an inhibitor of the enzyme rubisco. Which pathway would this affect most?

What metabolic class of microorganisms areconsidered primary producers and where are theytypically found in nature?

In anaerobic respiration, what will happen if a bacterium uses nitrates as the terminal electron acceptors? nitrogenlaxation nitrification denitrification both nitrogen fixation and nitrification

List four (4) individual alloantibodies which react preferentially at room temp or below.

roblem 1An aerobic biochemical process uses a CSTR w/o recycle. The feed characteristics are asfollows: Influent substrate concentration, So = 200 mg/L; half- velocity coefficient, Ks = 50mg/L; maximum, specific substrate utilization rate, k = 5 g/g- day; yield coefficient, Y = 0.5g Xa/g substrate consumed; microorganism decay coefficient, b = 0.10 day-1.1. The process goal is the production of active biomass. Determine the hydraulicretention time that the reactor should be operated in order to maximize the reactoractive biomass concentration (Xa). How does this retention time compare with theminimum solids retention time that the system can theoretically be operated?Calculate the solids retention time safety factor.2. Based on the solids retention time for maximum Xa calculated above, estimate theactive biomass concentration (Xa) and the substrate removal efficiency (E, %)

For questions 4 and 5 just say which kind they are (photoautotroph, chemoautotroph, photoheterotroph, or chemoheterotroph)

Nitrogenase complexes are irreversibly inactivated by oxygen. Explain how nitrogen-fixing bacteria solve this problem.

Your lab supervisor asks you to grow a new bacterium they got from a collaborator. You grow them in the suggested nutrient-rich media, and you notice that as the log phase growth progresses, the bacteria seem to turn purple.   You mention it to your supervisor and ask whether it is the gradient from very high to low nutrient bioavailability that induces metabolic changes which induces the production of a purple pigment. Your supervisor tells you that is unlikely. What is a more plausible conclusion