BIOLOGY

Reviewed by GL. And your sources of information?

**Cofactors, Enzymes, Riboszymes and Vitamines** =Cofactors:= A cofactor is a protein bound to a non protein chemical compound ( two or more chemical elements that bound each other to make a chemical substance) that help the Enzymes to protein's biological activity.



=Enzymes:= Is a protein that catalyze chemical reactions, this is a very important Biomolecule becouse many living things use the Enzymes to diferent process, like photosyntesis or the cellular respiration. In other words a lot of organisms use enzimes becouse the enzymes acelerate reactions. =**//Ribozymes://**= A ribozyme is a RNA molecule that catalyze (acelerate a reaction) a chemical reaction, like a Enzyme, But the ribozymes are very changeables that is the reason some organisms prefer the enzymes than the ribozymes. =Vitamines:= Is required like as a nutrient by an organism, and is one of the most important things that we need for our body but in the actuality we don´t eat vegetables or fruits that have the vitamines that we need to be in good state. The most common vitamines are Vitamines: A, B, C, D, E, and K.

Reviewed by GL = = = = = __//Atherosclerosis, the new View://__ = Atherosclerosis is a syndrome that affect the blood vessels, it is mainly cause by the liloproteins (bad cholesterol).when LDL compossed of cholesterol and fatty molecules oxidizede come in contact with an artery wall(__entering in the cell membrane of the cells that compose the artery__) causing a lot of reactions to repair the artery wall so the cholesterol can´t dissolve into the blood water but it can continue in the LDL so the white cells will try to protect the body absorbing the LDL but the white cell is not able to do the always process at couse of the oxidize and make an rupture depositing a greater amount of oxidize cholesterol into the artery wall so more white cells will come and continue the proces... finally this "autoattack" reduces the blood flow and increases blood pressure. i leave you a video for understund better... see it from minute 2.00 to see the "autoattack" that produce the Atherosclerosis media type="youtube" key="fLonh7ZesKs" height="344" width="425" Is our lifestyle affecting our health, and cell membranes, specifically? well yes and no, becouse when we refer to eat a lot of things of cholesterol will produce Atheroclorosis by the entering of all that LDL in our blood vessels. but we need to remember that cholesterol is good!, the HDL cholesterol is very good for the body and prevents the Atherosclerosis to if you are interested to know about HDL CHOLESTEROL SEE THIS PAGE(sorry is in spanish but is a very interesting page): http://www.alimentacion-sana.com.ar/Informaciones/novedades/colesterol%20bueno.htm like you can see it is excelent, an example is that it prevents cardiovascular accidents(specialy for that people that have less than 40 mgr%)

Rodrigo Navarro external links: http://www.alimentacion-sana.com.ar/Informaciones/novedades/colesterol%20bueno.htm http://www.youtube.com/watch?v=fLonh7ZesKs

= = = = Biomolecules Carbohydrates: The carbohydrates are biomolecules made of Hydrogen, oxygen, and carbon. The carbohydrates are the most common way to obtain energy and are the most common biomolecule of the 4 major classes of biomolecules in the world, it is important at cause that is our body and other organisms uses the carbohydrates as fuel and energy stores, the common formula is CH2O an example is the formula of fructose = C6H12O6.  The carbohydrates can be found in bread, cakes, etc. Lipids: the lipids are compose of Hydrogen, carbon and a little amount of oxygen but sometimes it can have some molecules of phosphorus, sulfur or nitrogen. This biomolecule is hydrophilic and is relationated with phospholipids, waxes, fats, oils, etc. This biomolecules are use like a fuel but it can cause some damages to the body becouse it can produce diseases like hyperlipidemia.  The lipids can be found in ice creams, oils, chocolates, butter, etc.

Proteins: The proteins are made of amino acids, this biomolecules are compose of Hydrogen, Oxygen, carbon and Nitrogen. Proteins are very common in organisms becouse it can be found in hemoglobin, enzymes, antibodies, etc. That are functional proteins in the organisms. So the proteins can be found in the meet, fish, milk, eggs, cheese, etc. Nuclei acids: The nuclei acids are macromolecules that contain the information for the work and the continuous function of the cell. The nuclei acids can be found in the DNA and RNA becouse it pass all the time there transporting info of what to do to the cells. It is compose of phosphore, carbon, nitrogen, hydrogen, and nitrogen.

= Web diagram =

=Diseases = Diseases caused by lipids and proteins: Atherogenesis is the most popular disease caused by carbohydrates, in this disease the LDL (low density lipoprotein(lipo-protein(lipids and proteins lol))(please read my other work that is up to know more about the lipoproteins)) is acumulated in the arteries causing a Atheroma plaque and this plaque close the artery complety, at consequence blood pass with difficulty through the artery. Diseases caused by Carbohydrates: The diabettes is the most popular disease it is caused by the carbohydrates and the insuline, what causes this is don't let the glucose from the carbohydrates in the cell and this lack sugar afect all the body making that some part of the body start to descompose becouse it don't have sugar. My brother was in danger to have diabettes but when he do a balance diet he get out of that danger.

(THIS IS AN EXAMPLE OF WHAT HAPPEN WHEN IS A LACK OF GLUCOSE IN THE CELLS)

Diseases caused by amino acids: A deficience in the amino acids is called phenylketonuria, this is a genetic disorder maked by the lack of a enzyme called phenylalanine hydroxylase that is essential to speed up the metabolism. This cause retardation in the humans. (this is the brain of a victim of  phenylketonuria)

 I-portfolio 1 media type="youtube" key="9MnQxiSJZ4Q" width="425" height="350" In this video we can se that they are very realists becouse as we can se most of the sperms have an amorphic problem, some sperm have 2 tails, others have 2 heads, etc. And we can see also that the sperms that are weak cannot survive. But at the final a sperm reaches the egg cell to make a new live. I-Portfolio 2 media type="youtube" key="unTshYSctAQ" width="425" height="350" Well i search in a lot of videos but I think that this video is a little large but explain in a very good way all what cancer is about and it explains too some solutions to this horrible disease. media type="youtube" key="JcPzS4JQkNg" width="425" height="350" This video is shorter that the other but explain in a rapid and good way what is breast cancer about and it explains too that the cancer con go to other places in the body.