AIIMS 2007
- Exam
- AIIMS
- Year
- 2007
- Subject
- Botany
- Chapter
- Mineral Nutrition
AIIMS 2007 · Botany · Mineral Nutrition
Leghaemoglobin helps in
Leghaemoglobin helps in
Options
- Aimparting colour to floral petals
- Bprotecting nitrogenase from (\mathrm{O}_2)
- Cdestroying bacteria
- Dtransport of food in plants.
Correct answer
B. protecting nitrogenase from (\mathrm{O}_2)
Step-by-step solution
Leghaemoglobin is a pinkish pigment present inside the root nodules of nitrogen fixing plants like legumes. It is an oxygen scavenger and is related to blood pigment haemoglobin. It protects nitrogen fixing enzyme nitrogenase from oxygen. The most important bacteria present inside the nodules is Rhizobium.