Nitrogen fixation

When nitrogen is applied to the ground in the method of fertilizer to help the agriculture crops grow, it can be washed off by rain or can seep down into the groundwater. If that water is used as a source of drinking water, the excess nitrogen in that water consumed by humans can cause cancer or respiratory problems. If there is too much nitrogen in bodies of water, it can result in the eutrophication and result in too much algae or even the death of the fish in the lake or coastal areas. When there is an overabundance in the water or in the soil, it can enter the atmosphere through smog as nitic oxide and cause breathing problems in humans. Over a period of time, it can also harm the trees and plants as it manifests itself in acid…

Pot A (phosphate limitation group) was given a phosphate reduced Hoagland’s solution, whereas Pot B (nitrogen limitation group) was watered with nitrate reduced Hoagland’s solution. Pot C (control) is the control plant as it was given standardized fertilizer regime using normal concentration nitrates and phosphates. All plants were grown in a growth chamber at a temperature of 22°C, the light intensity of 180 ue, photoperiod of 16 hours and humidity of 70%. After 4 weeks, one leaf from…

of high yields of corn is dependent on the Haber-Bosch Process in which ammonia gas is produced from hydrogen gas and atmospheric nitrogen. Nitrogen is one of the most abundant elements in the atmosphere, but plants are unable to reap the benefits that nitrogen has to offer because of their inability to break the triple bonded diatomic molecule. This element has been found to promote plant growth and increase crop yield, but it is only of use when the triple covalent bond between the atoms is…

The Haber process In modern society mankind relies on industrial chemistry processes. This industrial chemistry process is known as “The Haber Process” it is responsible for the production of the compound ammonia; which is accountable for the world’s consumption of natural gas (BBC, 2014). The Haber process is the method of synthesizing the compound of ammonia which is produced from Hydrogen (H2) and Nitrogen (N2) gas (Sinha, 2014). In 1909 a German named Fritz Haber developed the compound of…

Nitrogen fixing organisms are a very important piece of the nitrogen fixing process and most have a symbiotic relationship with legumes. Legume roots grow with nodules, and these nodules house the nitrogen fixing organisms known as rhizobium. These organisms are necessary for taking the atmospheric nitrogen and processing it into ammonia and other compounds in the soil. The nitrogenous compounds are then taken up by the plants (Bernhard, 2010). Legumes can be a natural solution to adding…

Impacting the Nitrogen Cycle In this paper, I will be examining the nitrogen cycle and my personal impact on it. Firstly, I will briefly discuss the cycle of nitrogen in the biosphere and its importance to all living organisms. Secondly, I will be examining my personal involvement in the nitrogen cycle and the impact those actions have. Then, I will be looking at ways that my actions can be altered to benefit the environment and reduce my negative impact on the ecosystem. Finally, I will…

Nitrogen cycling is a vital factor in how plants and organisms survive in ecosystems. Different genes in bacteria DNA allows for NO₃, in plants, to be converted to N₂ without releasing N₂O into the atmosphere. With a better understanding of which gene can convert N₂O to N₂, people can have a better understanding of what factors affect the nitrogen cycle. The genes that are responsible for converting NO₃ to N₂ are nirk, cnor, qnor, and nosz. Nosz is responsible for coding enzymes to convert N₂O…

What forces maintain variation within populations? 3. Do similar forces promote divergence among populations? 4. Why do sex chromosomes have peculiar passing down traits? Research in Dr. McDaniel’s lab aims to answer these questions by using classical genetic and genome analyses of the moss model system, Ceratodon purpureus. They also use Physcomitrella patens, a spreading earth moss, as a model for gene function analysis. These questions pose to look at what the genetic basis of dissociation…

BI374 – Phys. App. Of Microbiology TA: Aaron Coristine Student Name: Shane Thorn Student ID: 161668950 January 30, 2017 Discussion Questions General 1. Ammonification is the microbial degradation of nitrogenous compounds resulting in ammonia. Nitrification is a process by which ammonia is oxidized to nitrite and then nitrite is oxidized to nitrate. Denitrification is a process by which nitrate is converted into nitrogen gas or nitrous oxide by denitrifiers. Nitrogen fixation is a process by…

Biogeochemical cycles are the way in which nutrients move through the earths system. It is a pathway for chemical elements to move through biotic and abiotic factors. The ocean contributes largely to these cycles as it acts as a reservoir or sink for the accumulation of nutrients. Even water itself is recycled through precipitation, evaporation and condensation. This is a typical cycle that can be observed for the vital elements of life such as carbon and nitrogen. Microbes are essential to the…