The function of leghaemoglobin is
1. to provide oxygen to leg muscles of nitrogen-fixing
2. to protect oxygen-sensitive enzymes of nitrogen fixing bacteria in the root nodules of
legumes
3. to walk to the sites where oxygen is required
4. to function when haemoglobin is not available.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to
1. convert atmospheric N2 to NH3
2. convert ammonia to nitrite
3. transport oxygen for activity of nitrogenase
4. protect nitrogenase from oxygen.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDuring nitrogen fixation, nitrite is oxidized to nitrate with the help of the bacterium:
1. Nitrosomanas
2. Pseudomonas
3. Nitrobacter
4. Thiobacillus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHow many ATP molecules are required to biologically fix one molecule of nitrogen into two molecules of ammonia?
1. 4
2. 8
3. 12
4. 16
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology