The process of transfer of amino group from one amino acid to the keto group of a keto acid is called
Oxidative amination
Reductive amination
Transamination
Deamination
Related Questions
Select the correct statement.
Legumes are incapable of fixing nitrogen
Legumes fix nitrogen through bacteria living in fruits
Legumes fix nitrogen only by bacteria present in root nodules
None of the above
Leghemoglobin, present in root nodules, plays a crucial role in nitrogen fixation by:
Protecting nitrogenase from oxygen
Providing oxygen to nitrogenase
Converting nitrogen to ammonia
Transporting nitrogen to bacteroids
In root nodules of legumes, leghaemoglobin is important because it
Transports oxygen to the root nodule
Acts as an oxygen scavenger
Provides energy to the nitrogen fixing bacterium
Acts as a catalyst in transamination
ketoglutaric acid {\rm{ + N}}{{\rm{H}}_{\rm{4}}} + NADPH\xrightarrow{{'A'}}{\rm{glutamate}} + {{\rm{H}}_{\rm{2}}}{\rm{O}} + NADP\,\,'A'\,{\rm{stand}}\,{\rm{for}}\,{\rm{?}}
Glutamate dehydrogenase
Hexokinase
Alcohol dehydrogenases
Glycolate
The pink color inside a root nodule is due to the presence of:
Chlorophyll
Anthocyanin
Leghaemoglobin
Carotenoids
Nitrogenase catalyzes the conversion of atmospheric nitrogen into which compound in the root nodules of leguminous plants?
Ammonia
Nitrite
Nitrate
Dinitrogen
Which one of the following is an amide involved in nitrogen assimilitaion by plants?
Glutamate
Alanine
Asparagine
Serine
The relationship between Rhizobium bacteria and leguminous plants is an example of:
Parasitism
Commensalism
Symbiosis
Predation
The enzyme nitrogenase is highly sensitive to oxygen. How do root nodules maintain a low oxygen environment necessary for nitrogen fixation?
Active transport of oxygen out of the nodule
Anaerobic respiration within the bacteroids
Leghemoglobin binds oxygen, buffering its concentration
Thick cell walls of the nodule prevent oxygen diffusion
The product of reaction catalyzed by nitrogenase in root nodules of leguminous plants
Ammonia alone
Nitrate alone
Ammonia and oxygen
Ammonia and hydrogen