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Petri Dishes Test Tubes
899 wordsControlled Comparison: During class, our instructor set up the same lab that we were doing with 2 solutions, both of which were known acidic or basic. He placed 2 ml of the known acid into 2 different test tubes, and 2 ml of the known acid into 2 different petri dishes. Then using forceps, he tested blue litmus paper in one petri dish, and red litmus paper in another. The blue litmus paper, after being dipped into the solution, turned red in reaction to the acidic solution. While the red litmus ...
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Amount Of Light Five Minute
482 wordsDetermining Rates of Photosynthesis Through Chloroplasts 2) Purpose = measure the rate of photosynthesis in chloroplasts. 3) The chloroplast will be subjected to two experimental conditions- light, and the absence of light, using a spectrophotometer to determine the amount of DPIP reduced at specific time intervals under each condition. 4) I predict the amount of DPIP reduced will vary for each condition and increase over the time intervals. I hypothesize under the light condition the amount of ...
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Sodium Hydroxide Bunsen Burner
1,009 wordsExperiments to Provide Evidence in a Prosecution Case with the Pervis Vinegar Company on Unknown Toxins The aim of this experiment is to preform tests on two samples of vinegar, one that is commercially safe and the other not (from the Pervis Company) to determine the unknown toxin contained in the Pervis Vinegar. Materials: Numerous Beakers/Conical Flasks Phenolphthalein Indicator Burette Numerous Test Tubes Sticky Tape Test Tube Rack Sodium Hydroxide (NaOH) Calculator Sample of Commercially Sa...
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Test Tube M L
1,232 wordsLab Report 1: Separation of Proteins Abstract/Summary: "Proteins account for more than 50 % of the dry weight of most cells, and they are instrumental in almost everything organisms do" (Campbell, 1999). The significance of proteins to the continuation of our biological systems is undeniable, and a study of how to quantify proteins seems an appropriate introduction to our studies of biology. In order to study proteins we must first know how to separate then quantify the amount using basic princi...
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H 2 O 2 O 2
828 wordsPurpose - The purpose of this lab is to use a chemical titration to measure and them calculate the rate of conversion of hydrogen peroxide (H 2 O 2) to water and oxygen gas using the enzyme catalase. Hypothesis - The rate of enzymatically-catalyzed reactions can be determined by taking time reactions at different time intervals. When the rates are plotted on a graph, the rate of the reaction is the slope of the linear portion of the curve. To determine a rate, any two points on the straight-line...
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Investigation On The Enzyme Trypsin
2,197 wordsAn Investigation determining a factor affecting the rate of digestion of gelatin by the protease trypsin. Introduction An enzyme is a biological catalyst, which speeds up reactions. An example of this in the human body is trypsin (a protease produced in the pancreas and used in the stomach), which catalyses the digestion of gelatine, a protein. For this investigation, a photographic film will be the source of the gelatine. I will be able to identify when the gelatine is digested, when the photog...
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Bioethics Advisory Commission National Bioethics Advisory
1,490 words"To be or not to be... " In the last fifty years new forms of technology have been the center of attention for every human being. It seems that every day scientists come up with some new, perhaps even controversial, and exciting ways to improve the quality of life. These new technologies affect every aspect of life, as we know it. One such technology is the research being done in the area of cloning. Cloning is the production of one or more cells, individual plants, or animals that are genetical...
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Hydrogen Peroxide Degrees Celsius
539 wordsCatalase Which Is Found In The Liver' Introduction: Enzymes are biological catalysts. They speed up the chemical reactions which go on inside living things. Without them the reactions would be so slow that life would grind to a halt. Enzymes work by when a substrate molecule bumps into a molecule of the right enzyme, it fits into a depression on the surface of the enzyme molecule. This depression is called the active site. The reaction then takes place and the molecules of product leave the acti...
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The Danger Of Genetically Engineered Plants
1,899 wordsThe Danger of Genetically Engineered Plants Genetically modified crops are appearing on the farms of the United States more and more everyday, even though consumers may not know it. However, the good news is that these crops are planted because of their benefits to people. For example, according to the American Medical Association (AMA), More than 40 transgenic crop varieties have been cleared through the federal review process with enhanced agronomic and / or nutritional characteristics or one ...
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Baking Soda Test Tubes
868 wordsCarbohydrates are present in sugars, starch, acids, and in many other nutrients that consist elements of carbon, hydrogen, and oxygen. Having a ratio of 1: 2: 1 or written as CH 20. A monosaccharide meaning monomer of sugar is a simple carbohydrate. Containing backbone of five carbon atoms that are present in ribose and deoxyribose, components of RNA and DNA. Glucose a six carbon atom that is common cellulose, starch, and glycogen are classified as polysaccharide, Known as a complex carbohydrate...
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Distilled Water Color Change
1,564 wordsA theme Carbohydrates INTRODUCTION A theme that we have seen and studied in this class is that a particular form or structure of a molecule plays a significant role in the function of that molecule. Since we are interested in the function of molecules. it helps to study their structure. One of the major classes of organic compounds found in cells are carbohydrates. These carbohydrate are made of carbon, hydrogen, and oxygen in a ratio of 1: 2: 1 respectively with a general formula of X (CH 2 O) ...
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Human Rights Act Genetically Engineered
3,199 wordsCloning Essay For or against? Cloning can be the answer to many of the threats that loom on the human horizon. I believe that it can help many people in the future. Through cloning we might eventually be able to find cures for cancer, AIDS, or other genetic or life-threatening diseases. We might also be able to prevent heart attacks or strokes. We may also be able to correct peristalsis, which has paralyzed many including Christopher Reeves. When scientists finally finish mapping the human genom...
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Evaporating Dish Test Tube
822 wordsLab: To Successfully Separate The Substances In Lab: To Successfully Separate The Substances In The sludge And To Identify Their Characteristic Properties I. Title? Chapter 5 Lab Test II. Purpose? To successfully separate the substances in the sludge and to identify their characteristic properties. III. Methods and Materials? A. safety goggles, matches, alcohol burner / burner stand, test tubes w/ rubber stoppers, thermometer, pegboard, water, bucket, rubber band, calculator, sludge, rock salt, ...
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Test Tube Baby Patrick Steptoe Egg
480 wordsEngland s Test-Tube Baby The first baby to be conceived outside of it s mother promises to usher in a new and maybe, a revolutionary era of human reproduction. In July, Lesley Brown was getting close to delivery. This was said to be the world s first test-tube baby at the Oldham and District General Hospital, 190 miles outside of London. The infant was created when the egg of the mother was joined with the father s sperm in a special culture medium prepared by gynecologist Patrick Steptoe of Old...
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Hydrogen Peroxide Hydrochloric Acid
326 wordsFactors affecting reaction rates: Work to be done: Find out what factors that effect a reaction by experiment. Chemicals and apparatus: Spoon Test-tubes Water Beakers Glowing splint Citric acid, Magnesium powder, Mg Hydrochloric acid, HCl Zinc, solid and powder Acetic acid, HAc Diluted hydrogen peroxide MnO 2 Lab: Lab 1: First I mixed equal volumes of citric acid and magnesium powder. At first there was no reaction. I then added some water, and there was a reaction. Lab 2: I poured the same amou...
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Vitro Fertilization Test Tube
864 wordsIn Vitro Fertilization is the process in which infertile women, or women with husbands that are infertile, can have children. Popularly known as test tube fertilization, In Vitro Fertilization is Latin for in glass fertilization. The first test tube baby was born in 1978. How was this done? Well, Ill tell you the most scientific explanation about this amazing method of artificial insemination. Four elements are necessary for In Vitro Fertilization to take place. First, you must have ripe eggs fr...
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Todays Society Test Tube
681 wordsIs Science Nessesary With Reference To Mary Is Science Nessesary With Reference To Mary Shelly's Frankens ENG 4 A 0 ESSAY Where would we be if nobody bothered to look beyond? Dr. Frankenstein Is science necessary to our future? In todays society this is an unasked question lurking in the corners of cottages and winter getaways where food is cooked over a wood stove and the information highway is just a dirt road. In the novel Frankenstein we find that looking beyond only leads to pain and suffer...
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Peptide Bonds Test Tube
606 wordsThis lab used many test to determine which functional groups were present in certain substance. The Benedicts test was used to identify reducing sugars (glucose and fructose) based on their ability to reduce the Caprice ions to cuprous oxide at high pH. The Cuprous oxide is reddish orange in color when shown to be at high levels by the test, and greenish when at low levels. In both the onion juice and glucose solution the reducing sugar levels were very high, because the test came back dark oran...
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Reproductive Medicine Genetic Material
1,255 wordsReproductive technologies have the power to shape the future of the human race. If used responsibly, they can improve the quality of life for everyone and greatly reduce genetic disease. Married couples that aren t able to have children are given the ability to use their own genes to create a child of their own. These technologies can also allow parents to choose the physical and even mental attributes of their children, although parents could go overboard with this. Despite whether these techno...
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Supreme Court Of Canada Charter Of Rights And Freedoms
2,187 wordsBy: Reproductive Technology Reproductive Technology By: Jeff Stott Technological development and the advancement of science constantly raises new political and legal challenges. We must promote scientific development, but at the same time we must also impose restrictions involving certain human and social values. Reproductive technology is one of the best examples of the challenges posed by the development of medical science and it? s involvement with the law. Issues involved with Reproductive T...
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