Morphology of Flowering Plants Question 4
4. Roots of which plant contains an oxidising agent?
[2001]
(a) Carrot
(b) Soyabean
(c) Mustard
(d) Radish
Show Answer
Answer : b
Hints & Solutions
(b) In the roots of soyabean plant, leghaemoglobin, a pigment with affinity for oxygen, is found.
Symbiotic hemoglobin (leghemoglobin) is a hemeprotein found in micromolar concentrations in infected cells of legume roots. This is an essential component for nitrogen fixation by legumes. Leghemoglobin is produced as a result of symbiotic association between bacteroid and plant.
