NURSING ANM AND GNM

Detailed explanation-1: -Both inorganic and organic compounds may be used as electron acceptors in anaerobic respiration. Inorganic compounds include sulfate (SO42-), nitrate (NO3–), and ferric iron (Fe3+). Organic compounds include DMSO.

Detailed explanation-2: -In this process, electrons are transferred to electron acceptors such as nitrate, sulfate, elemental sulfur, carbon dioxide, oxidized metal ions such as Fe(III) and Mn(IV) and a range of other compounds including fumarate, dimethylsulfoxide, trimethylamine N-oxide, arsenate and selenate.

Detailed explanation-3: -An example of the ecological importance of anaerobic respiration is the use of nitrate as a terminal electron acceptor, or dissimilatory denitrification, which is the main route by which fixed nitrogen is returned to the atmosphere as molecular nitrogen gas.

Detailed explanation-4: -Indeed, a wide range of compounds that are available in the rhizosphere can serve as alternative terminal electron acceptors during anaerobic respiration such as nitrates, iron, carbon compounds, sulfur, metalloids, and radionuclides.

Detailed explanation-5: -Nitrate can serve as anaerobic electron acceptor for the oxidation of protoporphyrinogen to protoporphyrin in cell-free extracts of Escherichia coli grown anaerobically in the presence of nitrate.