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Bacteria Cells Harsh Conditions
1,391 wordsAs hard as it is to believe, bacteria (also known to scientists as Bacillus, thuringiensis) are everywhere; on your hands, on door handles, theres even thousands bacteria on the period at the end of this sentence (Thats how small they are). Bacteria have been around for about 3. 5 billion years. They were the first life forms on earth and more numerous then any other species we know of. Yet, while they are extremely common, they are also very small. Bacteria can only be seen with microscopes and...
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Three Organisms Hydra Flatworm And Earthworm
436 wordsThe Hydra, unlike other animals with an anus and rectum, uses the same opening for both taking in food and eliminating wastes. Its intracellular and extracellular digestive processes are detailed in the drawing I have made. It is the simplest of animals in the drawings, since it uses a contractile fibrils lining in its skin. The cells lining in the Hydra can take in solid bits of food with the internal cavities. Special cells of the hydra secrete enzymes into the central or digestive cavity, whe...
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Blood Flow Hepatitis B
826 wordsCirrhosis is a serious disease of the liver where scar tissue replaces normal healthy tissue, and affects the function and structure of the liver. Liver, which is the largest organ in the body, has a vital roles which are important to keep the body functioning well. Liver makes proteins and enzymes that regulate blood clotting. It also regulates cholesterol and stores the energy. In addition, the liver removes poisons from the blood. 30 % of cirrhosis's victims are diagnosed will remain alive fo...
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Starter Cultures Enzymes Skimmed Cow Milk Cheese
626 wordsPlace of Origin: Although snack-size sticks of mozzarella are now sold under this name, true string cheese originated in Syria, and often comes in a braided rope. The flavor is similar to mozzarella, but saltier. Ingredients: String cheese is usually made from Mozzarella cheese. The ingredients used to make Mozzarella cheese consists of: pasteurized part-skimmed cow's milk with starter cultures, enzymes, and salt. It can also come in smoked and unmoved versions, often with garlic and onion added...
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The Pacific Sands Eco One
917 wordsThe Pacific Sands Eco One line of spa products, formulated from select natural enzymes, is a nontoxic alternative to chlorine and bromine for use in consumer spas and hot tubs. () The product is heat-activated, has a pleasant lemon scent, leaves water clean and clear, and does not need to be rinsed off the skin after spa use, unlike chlorine and bromine. Spa users are increasingly complaining of adverse reactions to toxic chemicals commonly used in the spa industry; reactions such as itching, ra...
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An Anatomy And Physiology Of The Organelles Cell
1,095 wordsAn Anatomy and Physiology of the organelles of the cell In this paper I will examine an anatomy and physiology of the organelles of the cell. The branch of science which research deeply cells is called cytology. I will not deepen in the cytology because it is a really huge branch of science. What I want to do is make a brief introduction and acquaint you with main cytology thesis. After this I will concentrate all my attention in organelles. The cell is the structural and functional unit of all ...
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Small Amount 30 Seconds
717 wordsPCR And Its Use Often times, scientists only have a small amount of DNA to deal with when doing genetic research or studies. In these situations, scientists can do one of several things. One is to just try to work with it anyway, but this is nearly impossible (depending on how much there is). Ther are a couple other processes they can use, or they can use PCR. PCR is one of the more complicated, but reliable ways to do tests on DNA when they only have a small amount to begin with. PCR, or Polyme...
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Endoplasmic Reticulum Golgi Apparatus
545 wordsCell Cell Structure Definitions Definitions: Cell Wall A structure made of cellulose that is, in the plant, responsible for many tasks. Firstly, it maintains the shape of the cell, and secondly it protects the cell from external forces. It also serves as a connector between the cell in question and its neighboring cells. Cell Membrane A thin and flexible membrane used to hold the cell together (the example given in the text was: ? Like a sausage skin? ). Since it is semi-permeable, it prevents u...
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Gregor Mendel Genetic Makeup
916 wordsNote: Done for a grade 9 social-studies project. Not very much time and research was spent on this topic. Klyment Tan, September 27, 1997 Change in Genetics Genetics and biotechnology are very old fields of science. During the time of the Egyptians, people have used primitive genetics to produce better crops and livestock. The similar species were crossbreed to produce new species with more desirable traits. The first person to really study genetics was Gregor Mendel, an Austrian monk. He began ...
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Cystic Fibrosis Endoplasmic Reticulum
717 wordsCystic Fibrosis Commonly found in young children, Cystic Fibrosis is an inherited disease that is caused by a genetic disorder. The disease originates in the production of a critical protein that transports chloride ions from one place to another called a cystic fibrosis transmembrane conductance regulator (CFTR). The DNA of an infected person is missing three building blocks called nucleotides causing the CFTR protein to be missing one amino acid called phenylalanine. Normally, a healthy CFTR p...
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Cystic Fibrosis Gene Percent Chance
418 wordsCystic Fibrosis Cystic Fibrosis causes the body to produce an abnormally thick, sticky mucus, due to the faulty transport of sodium and chloride (salt) within cells lining organs such as the lungs and pancreas, to their outer surfaces. The thick mucus also obstructs the pancreas, preventing enzymes from reaching the intestines to help break down and digest food. Cystic Fibrosis has a variety of symptoms. The most common are very salty-tasting skin, persistant coughing, wheezing or pneumonia, exc...
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Vitamins And Minerals Balanced Diet
313 wordsExplain why digestion of large food molecules is essential o Large food molecules must be digested as they are crucial to our bodies. We would die if we could not digest them Explain the needs for enzymes in digestion o Enzymes are 3 D globular proteins. They increase the rate of reaction though they are not part of the reaction. They lower the activation energy i. e. the amount of energy needed for reaction to occur. Biological Catalysts State the source, substrate and optimum pH for one of eac...
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Hydrochloric Acid Small Intestine
580 wordsIt is in the mouth, that the Thanksgiving feast begins its journey through the fabulous digestive system. It is here that the lips, cheeks and tongue, carefully position the food that the teeth will chew. This chewing process breaks up the food, this being a part of mechanical digestion. While the teeth grind up the turkey and tasty stuffings, the salivary glands begin emitting enzymes, these enzymes being contained in saliva. This saliva helps to dissolve some foods, and adds mucus to make the ...
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Health Care Services Gay And Lesbian Community
716 wordsProtease inhibitors. For more than a decade, researches and physicians tried to develop new treatment to fight HIV. They came up with some drugs; however, these drugs have proved to be usefulness. They did not cured HIV, but slowed it down. Today, a new class of drugs is providing a New Hope against fighting HIV: protease inhibitors. Protease inhibitors are antiviral drugs. They interrupt the way HIV uses a healthy cell to make more viruses. When HIV enters a normal healthy cell, its concerned w...
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People With Down Syndrome Children With Down Syndrome
1,090 wordsDown Syndrome Introduction What is down syndrome, is it a birth defect or is it a disease. Well actually its a genetic disorder caused by the duplication of all or parts of the 21 st chromosomes. In our society is it fair to be treated differently just because you have genetic disorder. What causes them to be so different. Is it the way they look or is it the way they talk. What can a society do to those that are affected by this disorder. Is it possible to cure this disorder? As we further go t...
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Hydrogen Peroxide Test Tube
320 wordsHow does this Enzyme effect on this Biochemical Reaction? Purpose: The purpose of this lab was to discover the effects that certain enzymes have on chemical reactions. Were studying organic chemistry specifically, cells and proteins. The building blocks for proteins are enzymes and what better way to understand how they work than to watch them catalyze a reaction. Hypothesis: None really, just that we predict reactions in all of the test tubes except in test tube four where you sprinkle sand int...
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York Times High Blood
501 wordsGreen tea and black tea have recently been the topic of many scientific articles and experiments. There have been many findings in the past several years that link tea with the prevention or decrease in many diseases and cancers. For my critical review, I chose to delve into the subject of the benefits of black, green and oolong (red) tea. The New York Times article I am using claims that these teas help prevent against plaque buildup and many types of cancers including skin, lung, esophagus, st...
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Human Genome Project Dna Fingerprinting
990 wordsHuman Genome Project The Human Genome Project (HGP) is an international 13 year effort that began in October of 1990. The main objective of the project is to map the entire human DNA sequence. The project was planned to last 15 years, but rapid technological advances have moved the completion date to 2003. A rough draft of the human genome was completed in June 2000. Efforts are still underway to complete the finished high quality sequence. Many laboratories around the United States receive fund...
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Splicing Introns Sn Rnas Mrna
671 wordsIntrons and Exons March 31 1997 AP. Biology essay The finding of the Introns and the exons was one of the most significant discoveries in genetics in the past fifteen years. split genes were discovered when lack of relation between DNA sequences were seen during. DNA- mRNA hybrid ation. For all new mRNA, they must be transcribed by RNA polymerase enzymes. The transcription begins at the promoter sequence on the DNA and works down, thus the nucleotide sequence of the mRNA is complimentary to the ...
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Made Of Proteins Binds To The Small Rna
647 wordsProteins are some of the most essential compounds on the planet. They perform a variety of tasks ranging from muscle contraction to fighting diseases. Over 50 % of the dry weight of organisms are made of proteins; this is because things like your nails and hair are made of proteins. Proteins are also components of biological membranes, and they help regulate the passage of molecules through the membranes. This is all very important to the body, but the most important function, by far, is their u...
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