Essays Tagged: "Nitrogen"

Detection of biological molecules. Lab work.

he info. good style and observations.DETECTION OF BIOLOGICAL MOLECULESIntroduction: Without carbon, nitrogen, hydrogen, sulfur, oxygen and phosphorus, lifewouldn't exist. These are the most abundant e ...

(6 pages) 122 0 4.6 Oct/1996

Subjects: Science Essays > Biology

Expansion on the Recent Discoveries Concerning Nitric Oxide

not soluble in water. It is a clear gas. When NO is exposed to air, it mixes with oxygen, yielding nitrogen IV dioxide, a brown gas which is soluble in water. These are just a few of the chemical pro ...

(5 pages) 50 0 3.8 Nov/1996

Subjects: Science Essays > Chemistry

Human vs cetacean divers

is depth, pressure on the diver's chest cavity, lungs, and air within the lungs causes gases such asnitrogen in that air to dissolve in the blood of lung tissue. Dissolved nitrogen at high pressure an ... long as the diver does not ascend. When the diver ascends, pressure decreases (decompression), and nitrogen isreleased from the blood into body tissues as bubbles. This process is similar to the appe ...

(2 pages) 32 0 3.0 Dec/1996

Subjects: Science Essays > Biology > Human Biology

Projekt in danish conserning Superconductivity

et materiale der var supraledende ved en så høj temperatur, gjorde at man kunne anvende flydende nitrogen, der opnås ved 77o K. Flydende nitrogen har en større køleevne end flydende Helium og er ... rre køleevne end flydende Helium og er langt billigere at fremstille. I dag bruges også flydende nitrogen til køling af supraledende materialer og det er tilgængeligt ved mange universiteter og l ...

(11 pages) 44 0 4.5 May/2002

Subjects: Science Essays > Physics

Differences and Effects of Natural and Synthetic Fertilizers

absence can do a great harm to the development of the plant life. These nutrients include calcium, nitrogen, phosphorus, and potassium, and are very sparse in most soils, making them the primary ingr ...

(3 pages) 48 0 5.0 Jan/1996

Subjects: Science Essays > Biology

CFC'S detroy the Ozone

nket of air that surrounds the planet. This atmospheric air is made up of many different gases, 78% nitrogen, 21% oxygen, and 1% of a dozen or more other gases like carbon dioxide, helium, and ozone.T ...

(9 pages) 72 0 3.8 Jan/1996

Subjects: Science Essays > Environmental Science


k which is high in asphalt content. It consists ofa mixture of hydrocarbons, with traces of various nitrogenous and sulfurouscompounds.50-90% of petroleum is hydrocarbons and the remaining is composed ... roleum is hydrocarbons and the remaining is composed chiefly oforganic compounds containing oxygen, nitrogen, or sulfur. Pennsylvania crudeoils contain 97-98% hydrocarbons, but some oil from Californi ...

(2 pages) 58 0 3.0 Nov/2002

Subjects: Science Essays > Environmental Science

Proteins, their uses, structure etc.

.All proteins are combinations of about 20 differing amino acids each combined of hydrogen, carbon, nitrogen, oxygen and occasionally sulphur. The amino acids form peptide bonds between each other, th ...

(3 pages) 116 1 3.5 Feb/2003

Subjects: Science Essays > Biology

Venus, the 2nd planet from the sun.

nus does not, also their atmospheres are unlike on another. Venus's atmosphere is made up mainly of nitrogen and carbon dioxide.It is said that if Venus wasn't located so close to the Sun, the formati ... planet is 4.869 e + 24 KG. Venus's atmospheric composition are made up generally of carbon dioxide, nitrogen and there are trace amounts of Sulfur dioxide, water vapor, carbon monoxide, argon, helium, ...

(2 pages) 49 0 4.5 May/2003

Subjects: Science Essays > Astronomy

Describing how Hydrogen Bonding is done.

his means the more the less concentration. If the hydrogen is close to another oxygen, fluorine, of nitrogen in another molecule, then there is a force of attraction called a dipole-dipole interaction ...

(1 pages) 31 0 3.0 May/2003

Subjects: Science Essays > Chemistry

Can life exist without enzymes?

.An enzyme is a globular protein. Its basic unit is the amino acid, made up of the elements Carbon, Nitrogen and Hydrogen. Each enzyme has a specific 3-dimensional configuration, and an active site sp ... retion is the removal of poisonous metabolic wastes from the organism. An example is the removal of nitrogenous wastes by the kidneys in Man. This is important in sustaining life, as a buildup in thes ...

(8 pages) 92 0 4.0 Jun/2003

Subjects: Science Essays > Biology

Minamata Mercury Pollution Disaster.

. The town faces the Shiranui Sea, and Minamata Bay ispart of this sea. In Japanese, "Chisso" means nitrogen. TheChisso Corporation was once a fertilizer and carbicle company, andgradually advanced to ...

(3 pages) 53 0 3.0 Aug/2003

Subjects: Science Essays

Everything about Kidney's.

Inside the body the main organs that excrete nitrogen wastes are the kidneys. When something goes wrong inside the kidney your body may be in ris ...

(6 pages) 90 1 3.7 Sep/2003

Subjects: Science Essays > Biology > Human Biology

A paper on decompression sickness

Decompression sickness, or the bends, "is a condition that develops when an excess of nitrogen has dissolved in body fluids and comes out of solution as bubbles of gas when a diver surfa ... to combine Dalton's, Henry's, and Boyle's Laws. "With the increasing depth, the partial pressure of nitrogen also increases (Dalton's Law). As the partial pressure of nitrogen elevates, it accordingly ... accordingly becomes more soluble in the tissues of the body. (Henry's Law) At depth, the diver with nitrogen dissolved in the tissues and blood-stream experiences no apparent problems. On ascent, howe ...

(3 pages) 49 1 3.8 Dec/2003

Subjects: Science Essays > Chemistry

Causes and Disadvantages of Air Pollution

even death. Many people are not aware of this. The air that surrounds us is a mixture of 78 percent nitrogen; 21 percent oxygen; less than 1 percent of carbon dioxide, argon, and other gases; and vary ...

(4 pages) 24287 1 3.0 Feb/2004

Subjects: Science Essays > Chemistry

Darwin's theory of evolution by Nathan Belisle (if it is true or not)

e to exist four basic elements had to be present. These elements were carbon, hydrogen, oxygen, and nitrogen (CHON). Darwin thought that life could have came about from a mixture of these very materia ...

(7 pages) 71 1 4.7 Feb/2004

Subjects: Science Essays > Biology > Charles Darwin


ts so you can grow , for example , sorghum every year instead of just every second year.Plants need Nitrogen, Phosphorus, Potassium, Sulphur ,Calcium , Magnesium and Iron to grow really good (1).There ... ertilisers are made of man.They contain just the important nutrients like potassium, phosphorus and nitrogen (macronutrients).The biggest advantage of synthetic fertiliser is that they contain very co ...

(3 pages) 65 0 2.3 Feb/2004

Subjects: Science Essays > Agriculture

Air Pollution Research Paper. Includes Introduction to air pollution,types of air pollution,Causes and solutions,and conclusion!

AIR POLLUTIONAir Pollution is another major problem that is yet to be solved. The air is 99.9% nitrogen, oxygen, water vapor, and inert gases. We as humans depend on the air around us to live, wi ...

(4 pages) 293 0 3.7 Mar/2004

Subjects: Science Essays > Environmental Science

Air Pollution's Effects on Human Health & Mortality

nd particulates into the air and rain and wind scatter the particulates. The atmosphere consists of nitrogen, oxygen, and small amounts of carbon dioxide and other gases and particulates. Particulates ... nd the concentrations and ratios of gas phase photochemically active compounds such as nitric acid, nitrogen dioxide and ozone. The study was undertaken to examine, under controlled conditions, the ef ...

(5 pages) 153 1 4.6 Mar/2004

Subjects: Science Essays > Environmental Science

How different concentrations of acid affects the growth of the crest seed.

ossil fuels. The smoke from factories are carried into the air. It forms when oxides of Sulphur and Nitrogen combine with moisture in the atmosphere. These may be carried long distances before they ar ...

(3 pages) 25 0 3.7 Apr/2004

Subjects: Science Essays > Chemistry