-
Test Tube Degrees Celsius
1,267 wordsEnzyme Action: Testing Catalase Activity Enzymes are proteins that serve as catalysts and accelerate chemical reactions in living organisms. Enzymes accomplish this by lowering the energy of activation of the organism it is acting upon, however enzymes will only lower the energy of activation for specific organisms, reducing chaotic chemical reactions. The reaction is carried out in its entirety in the active site of the enzyme. The substrate (organism acted upon), binds itself into the active s...
Free research essays on topics related to: ph levels, degrees celsius, chemical reactions, test tube, optimum temperature -
Neural Tube Defects Spina Bifida
1,692 wordsHow Folate Can Help Prevent Birth Defects If you plan to have children some day, here's important information for the future mother-to-be: Think folate now. Folate is a B vitamin found in a variety of foods and added to many vitamin and mineral supplements as folic acid, a synthetic form of folate. Folate is needed both before and in the first weeks of pregnancy and can help reduce the risk of certain serious and common birth defects called neural tube defects, which affect the brain and spinal ...
Free research essays on topics related to: dietary supplement, spina bifida, neural tube defects, birth defects, folic acid -
Ball Bearings Cm
1,060 wordsSC 1: Investigating Terminal Velocity When an object falls through a fluid it accelerates until it reaches its terminal velocity. At this speed the forces acting on it are balanced. My task is to investigate the factors that affect the terminal velocity of a falling object. I am going to investigate how mass affects the terminal velocity. I think that as the mass of the ball bearing increases so does the weight of the ball bearing, which requires more friction to balance the ball bearing's weigh...
Free research essays on topics related to: directly proportional, p 1, p 2, cm , ball bearings -
Color Change Dependent Variable
1,395 wordsIntroduction: Carbohydrates are molecules that contain Carbon, Hydrogen, and Oxygen. The most basic sugar- carbohydrate is the monosaccharide. Carbohydrate molecules are categorized by the number of carbons present in the molecule. Glucose, the most common monosaccharide has six carbons per molecule, which is called a hexose. Carbohydrates also have a 2: 1 hydrogen to oxygen ratio. This aids in the condensation and hydrolysis reactions. A condensation reaction occurs when two monosaccharides joi...
Free research essays on topics related to: dependent variable, simple sugars, reaction occurs, color change, starch -
Test Tube Water Bath
622 wordsPurpose: To investigate the effect of temperature on the fermentation of glucose by bakers yeast. Hypothesis: If to separate tubes of 20 % glucose solution with 1 mil of yeast is added to battery jars filled with 20 and 38 c water then the warmer one will cause the yeast to ferment at a quicker rate. Materials: - 2 test tubes (100 mm. Long x 11 mm. I. D. ) - 2 ones-hole stoppers (size 00 w/ 3 mm. Hole) -Glucose -Bakers yeast suspension -Balance -Molding clay -Submersible test tube racks -Pins -M...
Free research essays on topics related to: test tube, water bath, three minutes, warm water, degrees c -
Chemistry Lab Concentration Effects On Rate Of Reaction
1,070 wordsAim: The aim of this investigation is to investigate the rate of reaction of magnesium (mg) with Hydrochloric acid (HCl). After studying the availability of equipment I have chosen to investigate how concentration can affect the rate of reaction. Other variables that affect this investigation are: - Concentration of solution - Temperature - Surface area of a solid - Catalyst - Light - Pressure of a gas Prediction: I predict that when changing the concentration of hydrochloric acid and water, the...
Free research essays on topics related to: hydrochloric acid, test tube, kinetic energy, measuring cylinder, average time -
Dna Gel Electrophoresis Research
1,848 words... ting smaller fragments that travel longer distances than the single cut or uncut, during electrophoresis. Which in turn proves that segment sizes are proportional to distance migrated. On a standard curve, the distance migrated is used in order to extrapolate the size of the DNA (base pairs). For an undigested or uncut p KAN plasmid it is expected that one fragment will be shown, unless the plasmid has been nicked and then will therefore show three. The size of this fragment should be close ...
Free research essays on topics related to: base pairs, uv light, p amp, gel electrophoresis, dna fragments -
20 Th Century Vacuum Tubes
1,004 wordsMilitary equipment, toys, communication, home electronics, computing, cars, satellites and others. This is only a partial list of products, which contain electronics. Actually electronics won our world. We wake up with the ring of electronic clock, drink coffee from a electronic coffee machine, work with computers, learn by using video conferences, listen to the music from a sound system and go to sleep while adjusting our electronic watch for tomorrow morning. It is hard even to think that only...
Free research essays on topics related to: tube, electronics, vacuum tubes, wide range, 20 th century -
Federal Appeals Court Ok
942 wordsA federal appeals court in PINELLAS PARK, Fla. agreed to consider an emergency bid by Terri Schiavo's parents for a new hearing on whether to reconnect her feeding tube, raising their fading hopes of keeping the severely brain-damaged woman alive. 'We " ll keep fighting, ' her father said. In its order late Tuesday, the 11 th U. S. Circuit Court of Appeals didn't say when it would decide whether to grant the hearing. It was not clear what effect reconnecting Terri Schiavo's feeding tube would ha...
Free research essays on topics related to: aid, feeding tube, appeals court, federal courts, tube -
Terminally Ill Assisted Suicide
2,623 wordsDying With Dignity Coping with death is an extremely difficult and individual problem, both for a sick dying person and for people around. This situation is very special, and it is always in close relation with many individual variables: psychological, emotional, social, ethical or moral, etc. For example, in some cases doctors consider it to be morally better not to inform the patient about his or her extremely bad conditions and high probability of lethal end. So, the last days of such person ...
Free research essays on topics related to: feeding tube, terminally ill, tampa bay, cardiac arrest, assisted suicide -
Color Change Dependent Variable
1,398 wordsIntroduction: Carbohydrates are molecules that contain Carbon, Hydrogen, and Oxygen. The most basic sugar- carbohydrate is the monosaccharide. Carbohydrate molecules are categorized by the number of carbons present in the molecule. Glucose, the most common monosaccharide has six carbons per molecule, which is called a hexose. Carbohydrates also have a 2: 1 hydrogen to oxygen ratio. This aids in the condensation and hydrolysis reactions. A condensation reaction occurs when two monosaccharides joi...
Free research essays on topics related to: color change, reaction occurs, dependent variable, simple sugars, starch -
Evaporating Dish Aluminum Foil
2,222 wordsPurpose: To conduct experiments and to determine whether they are physical or chemical changes Pre-Lab Notes: Before we conduct these experiments there are some topics that we must discuss. As I stated in the purpose, in this lab we are going to be looking at some experiments, and we have to determine whether they are a cause of chemical or physical changes. The purpose for all the labs that we will be doing will be the same. During a chemical change a new substance is formed, it is irreversible...
Free research essays on topics related to: test tube, hydrochloric acid, evaporating dish, aluminum foil, chemical change -
Sodium Hydroxide Test Tube
1,291 wordsExperiment showing the determination of Creatinine concentration in 24 -hour urine samples. Aim: The aim of the practical is to test the following hypothesis: The amount of creatinine found in a persons 24 -hour urine sample bears a direct relationship to the body mass of that person. METHOD: Materials: 1) 5 urine samples of unknown concentration numbered 1, 5, 6, 7 ad 8. 2) Picric Acid 3) 0. 75 M Sodium Hydroxide 4) P 1000 Gilson Pipette 5) 1 cm 3, 5 cm 3 and 10 cm 3 glass pipettes 6) Vortex Mi...
Free research essays on topics related to: test tube, sodium hydroxide, urine samples, standard deviation, body mass -
Sodium Hydroxide Petri Dish
1,559 wordsDetection of Biological Molecules Introduction: Without carbon, nitrogen, hydrogen, sulfur, oxygen and phosphorus, life wouldnt exist. These are the most abundant elements in living organisms. These elements are held together by covalent bonds, ionic bonds, hydrogen bonds, and disulfide bonds. Covalent bonds are especially strong, thus, are present in monomers, the building blocks of life. These monomers combine to make polymers, which is a long chain of monomers strung together. Biological mole...
Free research essays on topics related to: fatty acids, test tubes, sodium hydroxide, petri dish, chicken soup -
Electric Light Bulb World War Ii
4,554 wordsThe Development of the Television Television, our link to the changing world around us. Once thought to be just a passing phase through a quickly advancing society, but now a common innovation in every household. Since the l 940 s television has become the window on the world for much of industrialized society. Anything the eye can see may be brought to the little screens in living rooms, bedrooms, and kitchens. What comes through the window, however, does not always please everyone. Television ...
Free research essays on topics related to: viewing habits, soap operas, world war ii, television sets, electric light bulb -
Rate Of Reaction Bunsen Burner
2,301 wordsFor this investigation I am going to investigate the effect of the concentration of an enzyme, in this case Amylase, on the time taken for the enzyme to fully breakdown the substrate, which in this case is starch. The reason why these two enzymes have to be used is because each enzyme is designed specifically to break down only one substrate as each enzyme is made of a protein that causes it to be a specific shape, in this case the enzyme Amylase can only break down starch to dextrin. I am going...
Free research essays on topics related to: test tube, bunsen burner, rate of reaction, ph level, water bath -
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...
Free research essays on topics related to: hydrogen peroxide, test tube, sand, tube, 2 ml -
Sulfuric Acid Sodium Bicarbonate
9,780 wordsHow To Manufacture The D Enantiomer Of How To Manufacture The D Enantiomer Of Phenylaminopropane, And 3, 4, methyl-ene-dioxymeth-phenylaminopropane Re: DETAILED METHODS for NON-CHEMISTS METHamphetamine PRECURSS CLEANING/wk UP Extractomania... by Ozbee friends. edited by Placebo INDEX Equipment 2: Ingredients 3: Method step 1: step 2: step 3: step 4: step 5: step 6: 4: Acid/Base 5: HCl-Gassing 6: Note Equipment Various jars, glass vessels, beakers etc PH paper, electronic PH tester Filter paper c...
Free research essays on topics related to: add, sodium bicarbonate, hcl, flask, sulfuric acid -
Back And Forth Stimulated Emission
1,080 wordsThe light from lasers differs from ordinary light in several important aspects. Ordinary light from a light bulb travels randomly in all directions (unless the bulb is equipped with an integral reflector that directs the light). The light is thus incoherent. Even when incoherent light is directed with a reflector, it still spreads rapidly. The light from a laser is temporary and spatially coherent. This means that all of the wave-fronts of light are lined up in time and space (see Diagrams). The...
Free research essays on topics related to: stimulated emission, back and forth, electrical power, laser, laser beam -
Insulin Dependent Diabetes Mellitus Kill Cancer Cells
1,741 wordsThe pancreas Pancreas The Pancreas The pancreas is located in the middle of the abdomen. It s surrounded by the stomach, small intestine, liver and spleen. It s about six inches long and shaped like a thin pear, wide at one end. It has three sections: wider right end is the head, the middle is the body and the left end is the tail. The pancreas has two functions; to make enzymes that help digest fats and proteins and the other, to produce insulin that controls the blood sugar level called glucos...
Free research essays on topics related to: blood sugar, malignant tumors, insulin dependent diabetes mellitus, endocrine glands, kill cancer cells
Customer center
