BIOLOGY

Homework: Cancer (video) media type="youtube" key="WUoqsBxgXWI" width="425" height="350"

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Homework Enzymes,etc. Enzymes: -Was that catalyze protein nature of chemical reactions, wherever possible thermodynamically. -Enzymes reduce the activation energy required for a reaction to occur and thus speed up a reaction. -Temperature, above a certain point (optimum temperature) causes them to break down and they are gradually destroyed (denaturing). -They work best at a particular pH (optimum pH) and are once again destroyed by low or high pH. -Enzymes are specific to one type of reaction. -They aren't used in the reaction so they're re-usable. -Enzymes are highly specific about the substrate on which they act. -The enzyme maltose can breakdown only maltose and not any other disaccharide or carbohydrate.
 * ¿What are Enzymes? **
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Vitamins: Is an organic compound required as a nutrient in tiny amounts by an organism. -It is soluble in fats and insoluble in water. (Vitamin A) -It may be obtained from rice polishing.(Vitamin B1) -It is soluble in water.(Vitamin B2) -It is soluble on water and insoluble in oils.(Vitamin C) -It is insoluble in water but soluble in fats and oils.(Vitamin D) -It is soluble in oils but insoluble in water.(Vitamin E) The vitamins divided in 2 groups: 1) Soluble vitamins: Those bodies soluble in lipids. For example: Vitamin A, Vitamin D, Vitamin E and Vitamin K. 2)Vitamins Hydrosoluble: Those soluble in liquids. For example: Vitamin B1, Vitamin B2, Vitamin B3, Vitamin B6, Vitamin B12,and Vitamin C. Ribozymes: The ribozymes are RNA molecules that have the ability to act as catalysts, to speed up reactions in a specific manner. -RNA is an efficient catalyst and the same as the DNA has the ability to store information. - There is the assumption that a different type of nucleic acid, called "pre-RNA was the first to emerge as (autorreproductora) molecule to be replaced by RNA later.  -These nucleic acids are produced and polymerizes easily under prebiotic conditions.   -TRNA: whose role is to carry amino acids to ribosomes during protein synthesis.  -MRNA: transferring the genetic information of DNA. -7SL RNA, which is linked to protein 6.   Cofactors:  A cofactor is a non-protein, heat and low molecular weight, necessary for the action of an enzyme.  -  They are in low concentration in cells. -Can be shared by many different enzymes. -Possess a remarkable reactivity. -They are home vitamin.  -  Lipoic acid -Biocitina
 * ¿What are Vitamins? **
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 * ¿What are Ribozymes? **
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 * ¿What are Cofactors? **
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Biomolecules-Homework.

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Search information about Mitochondrial diseases caused by defects or misfunctions.

Is inherited mitochondrial disease that runs in family (genetic). An uncertain percentage gain the patients' symptoms due to other factors, including mitochondrial toxins.

It is important to determine what type of mitochondrial disease inheritance is present, to predict the risk of recurrence for future children.

The rates of inheritance of mitochondrial disease are: -nDNA -MtDNA -Combination of mtDNA-and nDNA defects

The hour of the planet

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To me this is (** The Birth of Complex Cells) media type="custom" key="3670349"

About Endosymbiotic theory ** media type="custom" key="3670443"