In what conditions would a microbe skip over the conversion of alpha-ketoglutarate to su CoA? It's highly NAD+ limited It's highly carbon limited It's highly ATP limited It's highly NADH limited
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- Which of the following pathways is used to fix inorganic carbon into organic form (like methane), by the anaerobic, chemoautotrophic archaeobacterium Methanococcus jannaschii? the reductive acetyl-CoA pathway the Hill reaction the Krebs cycle the Calvin cycle oxygenic photosynthesisSome microbes like E. Coli have flexible metabolic systems that allow them to generate energy under aerobic and a erotic conditions. If E.coli is growing in the presence of O2, nitrate, and fumarate explain its metbalobic processes including which of these it will use first and whyThe TCA cycle is an example of __________. ○ catabolism ○ anabolism ○ lithotrophy ○ autotrophy
- A microbe lives solely on acetate. It has an Electron Transport Chain driven by oxygen that has two hydrogen pumps and both NADH and FADH deliver their hydrogens (and electrons) to the first pump hence each generates 2 ATP. How many ATP are generated per acetate molecule?Which of the following statements is false? A. Sulfur-oxidizing bacteria may form hydrogen sulfide (H2S) as a product of the oxidation. B. Dissimilatory reduction of metals such as Fe3+ to Fe2+ represents anaerobic respiration. C. The nitrification reactions carried out by certain bacteria would be considered lithotrophy. D. Denitrification reactions would be considered anaerobic respiration.All fermentative pathways: generate gas. regenerate NAD. shut down in the presence of oxygen. produce Lactic Acid as an end product.
- Substrate level phosphorylation occurs in all of the following except: fermentation glycolysis electron transport chain Krebs cycleWhich of the following is NOT one of the three coenzymes functioning as important carrier molecules? Question options: FAD NADP+ ALL of these are important, and I cannot count to three FADP NAD+The anaerobic, chemoautotrophic archaeobacterium Methanococcus jannaschii uses which of the following carbon-fixation pathways to obtain organic carbon from CO2? the Hill reaction the reductive acetyl-CoA pathway the Calvin cycle oxygenic photosynthesis the Krebs cycle
- A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules. How does this organism make NADH?A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules. Describe a result of this organism’s metabolic pathways that could be beneficial to another organism (of any type) living in close proximityKrebs cycle products/acetyl CoA molecule are 4 CO2, 3 NADH, 1 FADH2, 2 ATP 4 CO2, 6 NADH, 2 FADH2, 2 ATP 2 CO2, 3 NADH, 1 FADH2, 1 ATP 6 CO2, 6 NADH, 2 FADH2, 4 ATP