Monday, December 13, 2010

PKU

(Pku)This stands for Phenylketonuria. This is a disease  that creates some kind of genetic disorder characterized by a deficiency in the hepatic enzymes. The enzyme is necessary to metabolize the amino acid phenylalanine. Usually they do screening for this in new born babies. The reason this is so bad is because it can create brain damage and if not taken care of or treated properly its progressiveness will create mental retardation. Later studies said that a healthy diet can help but in recent studies show that  in worse cases you need protein supplements and need to lower phe levels to safe range.

Thursday, December 9, 2010

Graphs for lab



In this lab we used 3ml of water and 3ml of peroxide and different numbers of drops of yeast. What we did then was we mixed three different amount of drops in 3 different tubes with the same amount of water and peroxide. We then put a stopper with a pressure sensor on it. and watched the graph rise  we did 3 sets f three the first one had a variable  of different amounts of drops , the second we used different ph levels, and the last on we  had different temperatures. All of these showed different rates of reaction and we Graphed them.The graphs above the the different reaction rates and the amount of prssure put out by these reactions.

Thursday, December 2, 2010

rattle snake venom

Rattle snake venom is a very toxic and some times fatal poison if not treated right away. There are three basic types of venom Hemotoxic, Cytotoxic, and neurotoxic. the first effects cardiovascular system the second effects the muscles and the last effects the brain and nervous system. The venom is a mixture of proteins and enzymes. When bitten by a snake with hemotoxic venom it typically acts to lower blood pressure and encourage blood clotting. When bitten by a snake with Cytotoxic venom it is designed to cause tissue damage and spread through out the body. And when bitten by a snake with  a neurotoxic venom it is designed to shut down the nervous system and the brain most the time causing paralysis or lack of muscle movement.



InfoProvided By: http://www.wisegeek.com/how-does-snake-venom-affect-the-human-body.htm

Wednesday, November 17, 2010

Plants and animal cells

plant_cell.jpgPlant cells and animal cells both have a cell membrane, nucleus, and cytoplasm. But in a plant cells it has a cell wall and it has chloroplast that is unique to just plant cells. A plant cell use lights rays from the sun to create sugars that provide the plant with nutrients. With an animal cell it has Centrosome which divids the cells, and Centriolise. Animal cells cant use light like plant cells do instead it relies on individual cells to break down nutrients that is absorbed into the body.

Tuesday, November 9, 2010

Fluid Mosaic modle

In this project i didn't really understand how the cells worked. I didn't understand what the different proteins were and what they did but now i know.The different proteins in this cells are integral and peripheral proteins, integral proteins are hydrophobic and peripheral proteins are hydrophilic. After reading and doing our experiments in the class room i  came to under stand how this worked, a little better than i did before. one lets negative ions pass and the other lets positive ions pass. phospholipids are like the shell of the cell they cover the entire cell and  have little tentacles to grab on to  each other with and they connect the cell. That is all i have for today.

Monday, October 11, 2010

antacids

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antacids

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Tuesday, September 21, 2010

bases and acids

Acid taste sour, are corrosive to metals, change litmus (a dye extracted from lichens) red, and become less acidic when mixed with bases.
Bases feel slippery, change litmus blue, and become less basic when mixed with acids. 
To change an acid to a base you have to increase  some of the ions to make it basic again.


How do ant acids work? Ant acids work by changing the acids in your body by changing  the ph levels to make the acid  a base. And what would make an acid an acid is that it has a higher level of hydrogen and the more basic it gets the more OH it has.

Monday, September 13, 2010

water properties article summary

This article is about how scientist have been studying properties of water by using  sheets of carbon and using tunneling microscopes to see how water coats the surface at room temp. They have discovered that water molecules are hard to study cause they do not sit still for very long "in constant Flux." To make the molecules stay still they accidentally they came across a technique to hold them still at room temp. using a thin layer of carbon mesh "Graphene" only one atom thick water molecules are held still under the mesh. the structures under this became more notice able in higher humidities. They had discovered that on mica the molecules were actually two molecules thick. they look like little islands. They are trying to use what the have discovered to study all surfaces like adhesion and lubricants. this study was provide by the u.s department of energies offices of basic energy science.

Thursday, September 2, 2010

what i learned

What i learned from the clinical trails experiment yesterday was how to use the clinical trials web site to find different disease  and learn who does what how they are experimenting with vaccine and who is eligible for the trials. i learned they some times give several people medicine but only one person really got the medicine and they want to know who it affected with out the psychological effect. I also learned this definitions and what they mean and how they are applied in a study. The double blind experiment- means in an experiment procedure neither of the subjects know the critical aspects of the experiment. Placebo-  is a simulated medical intervention that can produce an effect because the thought not the drug they had received. Control is having the basic understanding of the experiment you are being part of. That is every thing i have learned from what we did yesterday.