The process of nitrogen fixation is mainly carried out by some ___. A. animals B. plants C. bacteria D. fungi 相关知识点: 试题来源: 解析 C。解析:氮固定这个过程主要是由一些细菌来进行的。“bacteria”细菌是氮循环中进行氮固定的重要生物。选项A“animals”动物,动物在氮循环中不是主要进行氮...
My invention relates to a process for the fixation of nitrogen. Although it is known that nitrogen and oxygen may be combined through the use of the electric arc as a source of energy, the relation of the output of oxide of nitrogen, so formed, to the current consumed, is such that ...
nitrogen fixation n 1.(Biology) the conversion of atmospheric nitrogen into nitrogen compounds by certain bacteria, such asRhizobiumin the root nodules of legumes 2.(Chemistry) a process, such as the Haber process, in which atmospheric nitrogen is converted into a nitrogen compound, used esp for...
nitrogen fixation n 1.(Biology) the conversion of atmospheric nitrogen into nitrogen compounds by certain bacteria, such asRhizobiumin the root nodules of legumes 2.(Chemistry) a process, such as the Haber process, in which atmospheric nitrogen is converted into a nitrogen compound, used esp for...
Nitrogen fixation by free-living bacteria in tropical soils is also beneficial. 2.According to paragraph 1, one reason that the relatively high levels of aluminum in rain forest soils present a problem for plants is that aluminum A. reduces the mineral-binding capacity of soils B. is ...
The sustainability paradox of processing plant proteins The production of sustainable plant-based foods is not simply a question of which process has the lowest environmental impact in the food chain. We have to consider that different degrees of processing might result in different degrees of plant...
Book description The turn of the millennium from the twentieth to the twenty-first century provides an occasion to review our understanding of a biological process, biological nitrogen fixation, th ... read full description Purchase book Share this bookBrowse...
Biological nitrogen fixation is a prokaryotic process that plays an essential role in the global nitrogen cycle. Azorhizobium caulinodans ORS571 has the dual capacity to fix nitrogen both as free-living organism and in a symbiotic interaction with Sesbania rostrata. The host is a fast-growing, sub...
Since nitrification in the ocean interior typically competes with no other process, the δ15N of the NO3− added to the ocean interior by remineralization is largely determined by the δ15N of the sinking N from the surface ocean20,24. The internal cycling of N in the low- and mid-...
This book contains 15 chapters discussing the importance of a biological process, biological nitrogen fixation, which provided a basis for maintaining soil fertility since the beginning of organized agriculture. Topics covered include: (i) structure and spectroscopy of nitrogenase; (ii) products of the...