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Cellular Respiration

... again. For each molecule, 2ADP combine with two phosphates to form a total of 4 ATP, and pyruvic acid molecules are formed. A net gain of 2 ATP have been formed. As the pyruvic acid molecules make their way toward the mitochondria, two more molecules of NADH are formed. A carbon atom also breaks off and combines with two oxygen atoms to produce the waste product carbon dioxide. As a result of these reactions, each pyruvic acid molecule is transformed into a two-carbon compound called an acetyl group. The two acetyl groups combine with ...

Number of words: 366 | Number of pages: 2

Dinosaurs 2

... a very large skull put a tremendous strain on its body, so to counterbalance its weight, the tyrannosaurus had a strong attachment of backbone to pelvis which allowed its body to pivot at its hip (Wilford 142). With its body balanced right, the Tyrannosaurus walked on two legs, and it had two very short arms. The Tyrannosaurus was one of the most feared dinosaurs. The word Tyrannosaurus means “tyrant reptile”. Since the Tyrannosaurus Rex was a meat-eater, its teeth were shaped in zig-zag form which allowed it to cut through meat lik ...

Number of words: 940 | Number of pages: 4

Killer Whale, The Mighty Dolph

... as the "saddle patch" for obvious reasons. Males weigh up to eight-thousand pounds while females weigh closer to four-thousand. The Killer Whale is also very easily identifiable as male or female. The male's dorsal fin can reach seven feet tall and stands straight up off the middle of his back. The female's dorsal fin is much shorter, usually about three feet, and instead of standing straight, forms a crecent arc on her back towards the tail. Although Killer Whales are not used for oil-based products they have over and over again been found ...

Number of words: 399 | Number of pages: 2

Human Rights

... policy Civil liberties Some constitutions contain a statement of human rights professedly in order to safeguard the freedoms of individuals and groups in society. Other constitutions may not, but freedom operates as a politically and socially persuasive doctrine. There is no agreement as to the content of such rights. The more important rights may be said to include the right of each individual to: · freedom of speech and expression freedom from arrest or detention except under authority of law, freedom from cruel, inhumane or degrading ...

Number of words: 558 | Number of pages: 3

Changing Undesirable Behaviors

... inside was given. An even number of opportunities to escape were given to the subject on each day consecutively without correction and all actions were recorded to help in establishing the baseline. The total number of opportunities was fifteen a day. Every time the action occurred, the subject was immediately picked up and placed back inside the house. Day's five through eight were designed to truly concentrate on implementing the developed program with the same number of opportunities to escape as the previous four days. RESULTS ...

Number of words: 615 | Number of pages: 3

History Of Cell Membrane

... microscope, let alone seventy years for the advent of freeze fracturing techniques. Nageli and Cramer in 1855 had already suggested that biological cells are separated from their environment by a membrane possessing special characteristics, and in 1900 Overton performed some simple but classical experiments which proposed that cell membranes were composed of lipids (1). By measuring the permeability of various compounds across the membrane of a frog muscle, Overton found some interesting results. He observed that lipophilic molecules ...

Number of words: 414 | Number of pages: 2

Depression 7

... in all races, but most studies indicate that women are more often afflicted. There are two major forms of depression . One form is called depressive disorder. It is diagnosed only by episodes of depression. Episodes can be short or long but are usually brought about by an incident in a person's life. An example of this is if someone close to them dies. The other kind is called bipolar or manic depressive illness, it is recognized by alternating depressed and manic episodes. This is an actual brain disfunction. In the major depression or th ...

Number of words: 489 | Number of pages: 2

Gold

... since Pre-historic time. It was important to early man because it could be taken as a free metal with out difficult separation techniques. "At some unknown time during the Stone age man learned to value gold for its unusual qualities"(Encyclopedia American 1997). So it is unknown who discovered gold. Gold has the best working qualities of any metal. It is an unusual metal in its color, Luster, malleability and it can with stand corrosion. "By at least the fourth millennium BC, gold was found through both placer and vein(lode) mining and ...

Number of words: 914 | Number of pages: 4

Humbled By Nature’s Grandeur

... I learned many facts about the Orcas. My Dad, who had been doing other work on the island, was completely in the dark when it came to understanding these animals. He kept asking me questions about the whales and their habits. It was an interesting change of pace to be my Dad’s teacher. This was great because I actually knew something that my Dad did not know, which was very rare. Though that was great, it was not the best part of my adventure. The best part of my experience was in the water. We set out to sea around 5:00p ...

Number of words: 689 | Number of pages: 3

Should The Harris Superquarry Go Ahead?

... is expected to be around 60 years and provide an initial 30 jobs, rising to 80 as the quarry reaches peak production. The question is if a superquarry is the best solution to the problems of a remote rural area. What will happen when the jobs come to an end and would another form of investment not be more appropriate to their needs? Would the presence of a quarry restrict the choice for further development? Could an integrated approach be adopted and a 2nd generation quarry planned? The decision of whether or not to go ahead cannot be d ...

Number of words: 2034 | Number of pages: 8

Mercury

... occurs free in nature and is found mainly in cinnabar ore which is HgS. Cinnabar ore is found in Spain and Italy. is a heavy, silvery-white metal which forms alloys easily with many metals like gold, silver, and tin. These alloys are called amalgams. Its way of amalgamating with gold is made use of the recovery of gold from its ores. is a bad conductor of heat and a okay conductor of electricity. The most important salts are mercuric chloride HgC12 which is a corrosive and violent poison. Mercurous chloride Hg2Cl2 which used to be us ...

Number of words: 391 | Number of pages: 2

Radon

... but have different atomic weights and mass numbers (The America Heritage Dictionary of the English Language, Third Edition, 1992). The nuclei of isotopes of the same element have the same number of protons but they have different numbers of neutrons (The America Heritage Dictionary of the English Language, Third Edition, 1992). The isotopes of a given element have identical chemical properties but varying physical properties (The America Heritage Dictionary of the English Language, Third Edition, 1992). A radioisotope is a radioactive iso ...

Number of words: 2138 | Number of pages: 8

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