PLANT PHYSIOLOGY
MINERAL NUTRITION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen fixation. Which one of the following statements is not correct during this process of nitrogen fixation?
|
|
Leghaemoglobin scavenges oxygen and it is pinkish in colour.
|
|
|
Nodules act as sites for nitrogen fixation.
|
|
|
The enzyme nitrogenase catalyses the conversion of atmospheric N2 to NH3 .
|
|
|
Nitrogenase is insensitive to oxygen.
|
Explanation:
Detailed explanation-1: -This statement is correct. This is because the root nodules of the leguminous plants contain necessary biochemical components. These components help in fixing atmospheric nitrogen to inorganic ammonia. Hence, the root nodules act like sites of nitrogen fixation.
Detailed explanation-2: -So, the correct answer is ‘Frankia’.
Detailed explanation-3: -So, the correct answer is ‘legumes fix nitrogen through bacteria in their roots’
Detailed explanation-4: -Most leguminous plants require a neutral or slightly acidic soil for growth, especially when they depend on symbiotic N2 fixation (41, 47).
There is 1 question to complete.