Question

what is role of legheamoglobin in root nodules of pea plants

Answer 1

Root nodules are found on the roots ofplants, primarily legumes, that form a symbiosis with nitrogen-fixing bacteria. Under nitrogen-limiting conditions, capable plants form a symbiotic relationship with a host-specific strain of bacteria known as rhizobia. ... Legume crops include beans, peas, and soybeans.

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Answer 2

The nodule contains all the necessary biochemical components, such

as the enzyme nitrogenase and leghaemoglobin.The enzyme nitrogenase is highly sensitive to the molecular oxygen;                      

it requires anaerobic conditions. The nodules have adaptations that ensure

that the enzyme is protected from oxygen. To protect these enzymes, the

nodule contains an oxygen scavenger called leg-haemoglobin