You are working on characterizing the metabolism of an unknown organism. You find that the organism is a strictly fermentative organism. Which of the following mechanisms is likely absent in this species?ANSWEROxidative phosphorylationBoth oxidative and substrate-level phosphorylationSubstrate-level phosphorylationMetabolism
Question
You are working on characterizing the metabolism of an unknown organism. You find that the organism is a strictly fermentative organism. Which of the following mechanisms is likely absent in this species?ANSWEROxidative phosphorylationBoth oxidative and substrate-level phosphorylationSubstrate-level phosphorylationMetabolism
Solution
The mechanism likely absent in a strictly fermentative organism is Oxidative phosphorylation. This is because oxidative phosphorylation is a metabolic pathway that uses energy released by the oxidation of nutrients to produce adenosine triphosphate (ATP). However, fermentative organisms do not use oxidative phosphorylation for energy production. Instead, they rely on fermentation, which does not require oxygen and typically results in the production of lactic acid, ethanol, and other byproducts.
Similar Questions
A new species of obligate anaerobe, a bacterium, has been found that lives in hot, acidic conditions. While other pathways may also be present, which metabolic pathway is the most likely to be present in the species?A. The citric acid cycleB. Oxidative phosphorylationC. GlycolysisD. Anaerobic respiration
Fermentation is defined as: Group of answer choicesenergy metabolism in the absence of external electron acceptorsenergy metabolism of anaerobesabsence of electron transport chainslife without air
Bacteria carrying out fermentation gain energy through both oxidative phosphorylation and substrate-level phosphorylation. Group of answer choices True False
A strictly fermentative bacterium produces it's energy (ATP)Group of answer choicesBy glycolysis only.By aerobic respiration onlyOnly in the absence of oxygen.By fermentation or aerobic respiration.Only in the presence of oxygen.
What is the first step of fermentation?Group of answer choicesoxidative phosphorylationcitric acid cyclepyruvate oxidationchemiosmosisglycolysiselectron transport chain
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.