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प्रश्न
Rice fields produce an important greenhouse gas. Name it.
उत्तर
CH4 (methane).
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संबंधित प्रश्न
What are the conditions necessary for fixation of atmospheric nitrogen by Rhizobium. What is their role in N2 -fixation?
What are the steps involved in formation of a root nodule?
In Glycine max, the product of biological nitrogen fixation is transported from the root nodules to other parts as ______.
In some plants, like soyabean, fixed nitrogen is exported into the transpiration stream as :
Reaction carried out by N2 fixing microbes include
- \[\ce{2NH3 + 3O2 -> 2NO^{-}2 + 2H^{+} + 2H2O (i)}\]
- \[\ce{2NO^{-}2 + O2 -> 2NO^{-}3 (ii)}\]
Which of the following statements about these equations is not true
Nitrogen fixation is shown by prokaryotes and not by eukaryotes. Comment.
Name a plant which lacks chlorophyll. How will it obtain nutrition?
Name one non-symbiotic nitrogen fixing prokaryote.
We find that Rhizobium forms nodules on the roots of leguminous plants. Also Frankia another microbe forms nitrogen fixing nodules on the roots of non-leguminous plant Alnus.
- Can we artificially induce the property of nitrogen fixation in a plant – leguminous or non-leguminous?
- What kind of relationship is observed between mycorrihiza and pine trees?
- Is it necessary for a microbe to be in close association with a plant to provide mineral nutrition? Explain with the help of one example.
Give the biochemical events occurring in the root nodule of a pulse plant. What is the end product? What is its fate?
