In the nitrogen cycle, which enzymes are responsible for converting nitrate to ammonia sequentially?Group of answer choicesnitrate oxidase and nitrite oxidasenitrate reductase and nitrite reductasenitrate oxidase and nitrite reductasenitrate reductase and nitrite oxidasenitrate dehydrogenase and nitrite oxidase

Which of the following enzymes is a central point in nitrogen metabolism in humans?Group of answer choicesglutamate dehydrogenasecarbamoyl phosphate synthetaseglutamine synthetasetransaminaseglutamate synthase

Which of the following best describes the process of nitrogen fixation in the nitrogen cycle?*1 pointConversion of nitrogen gas into ammonia by nitrogen-fixing bacteriaConversion of nitrates into nitrogen gas by denitrifying bacteriaConversion of ammonia into nitrates by nitrifying bacteriaAbsorption of nitrogen compounds by plants through their roots

The process of denitrification in the nitrogen cycle is responsible for:*1 pointConversion of nitrogen gas into ammoniaConversion of nitrates into nitrogen gasAbsorption of nitrogen compounds by plantsConversion of ammonia into nitrates

Nitrogen is an essential part of the proteins and DNA of organisms. Although nitrogen gas makes up about 78% of Earth’s atmosphere, it is unavailable for use by organisms in its gaseous form. Only when nitrogen is absorbed by beneficial bacteria in the roots of legumes does it enter the pathways that carry it through biological communities.The processes of conversion of atmospheric nitrogen first into ammonium ions (NH4+) and then into nitrates (NO3–) are called respectively*1 pointnitrogen fixation and denitrificationnitrogen fixation and nitrificationammonification and nitrificationammonification and denitrification

Nitrogen fixation is the process in which some bacteria and archaea convertMultiple choice question.nitrogen gas (N2) into ammonium ions (NH4+).nitrate (NO3-) into nitrogen gas (N2).ammonium ions (NH4+) into nitrogen gas (N2).ammonium ions (NH4+) into nitrate (NO3-).