Nitrogen

The catechol estrogens can give rise to semiquinones and o-quinones by any oxidizing enzyme or transition metal ions such as Cu2＋ or Fe3 [66, 67, 68]. ROS including superoxide anion radicals and hydroxyl radicals is generated when semiquinones are converted to o-quinones and o quinones are reduced back to catechols and semiquinones. These metal ions and hydroxyl radicals are responsible for oxidative damage to DNA, lipids and proteins [69, 70]. Sulfation of E2 leads to decreased hormonal…

AHCSOL303 Assignment 3- soil amelioration report 1.i have a soil that does not absorb water, and when i water it the water pools on the surface and does not infiltrate. What is wrong with my soil? The soil could either be hydrophobic or heavily compacted. Hydrophobic soil is where the surface tension does not allow for infiltration of water because of a waxy layer, which cause the water to form into little beads and can form a pool on the surface. Heavily compacted soil is soil that has…

While trying to find a life lengthening elixir Chinese alchemists invented the deadliest powder in the world. In the 9th Century Chinese alchemists were trying to find a potion of immortality. However they ended up finding a potion of death unlike anything else. The first ever mixture was 75 percent saltpeter or more commonly known as potassium nitrate, 15 percent sulfur, and 10 percent charcoal. After the invention of gunpowder the Chinese people initially used it for fireworks. It was not…

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…

Water cycle 2. Carbon cycle 3. Nitrogen and Phosphorous cycles 4. Biodiversity III. Impacts of the Water bottle product on the life cycle of water, Carbon, Nitrogen/Phosphorus and biodiversity 1. Water cycle 2. Carbon cycle 3. Nitrogen/Phosphorous cycle 4. Biodiversity IV. Interventions on the environmental impacts 1. Benefits i. Water cycle ii. Carbon cycle iii. Nitrogen/phosphorous cycle iv. Biodiversity 2. Drawbacks i. Water cycle ii. Carbon cycle iii. Nitrogen/phosphorous cycle iv.…

This is what people refer to when they talk about smog. According to the Webster dictionary, smog is “a photochemical haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen especially from automobile exhaust” (Dictionary, 2016). Because of our atmospheric pollution, when smog is present and it begins to rain, the rain traps the chemicals and brings them down to the earth’s water…

Determining the Latent Heat of Vaporisation of Nitrogen Abstract The aim of this experiment was to determine the latent heat of vaporisation of nitrogen. To do this, a resistor connected to a power supply was used to heat up liquid nitrogen. Measuring the current and resistance in the circuit gave the power supplied to the liquid nitrogen and measuring how long it took for a fixed amount of nitrogen gas to be produced gave the rate of evolution of nitrogen gas. Plotting the power against…

The Rangifer Tarandus, better known as caribou or reindeer, is an herbivorous species living in the tundra. Tundras have a vastly cold climate, with limited vegetation. Caribou are similar to deer; however they are much bigger with a shoulder standing height of 2.8-4.9 feet, and females weigh 175 to 225 pounds, while males weigh about 350 to 400 pounds (Caribou). Reindeer were first found in Norway and were only known as Reindeer, once people started realizing how beneficial the Reindeer were…

questions pose to look at what the genetic basis of dissociation between mosses and their microbes is. His lab is currently focused on two projects: the evolutionary causes and consequences of dioecy and the community genomics of moss-associated nitrogen fixation in a changing Arctic. These questions are important because the maintenance of separate sexes (dioecy) is, as said by Dr. McDaniel, “an enduring evolutionary puzzle.” These questions and research projects are the stepping stones to…

calculate the amount of nitrogen in animal manure for outwintering, as to not apply more than is allowed beforehand. Fertiliser Programmes Fertiliser is key to attaining high yields when growing crops. RB209 is a publication produced by the Agriculture and Horticulture Development Board (AHDB) to enable farmers, growers and agronomists to apply the correct amount of fertiliser for the particular situation. Forage Swedes Forage Swedes SNS Index (kg N/Ha) 0 1 2 3 4 5 6 Nitrogen (N) 100 80 60 40…