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Free research essays on topics related to: test tubes

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  • Test Tube Degrees Celsius
    1,267 words
    Enzyme 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
  • Petri Dishes Test Tubes
    899 words
    Controlled 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 ...
    Free research essays on topics related to: petri dishes, solution 1, test tubes, color change, 2 ml
  • Petri Dishes Bacteria Cells
    1,566 words
    In this lab we observed the growth of bacteria in a conjugation and transformation experiment. We expected the mating plate of the conjunction to grow and the bacteria on the transformation plates to grow also. We also practiced using aseptic techniques to clean the lab benches and to keep the bacteria from being contaminated from outside bacteria. This lab will take a total of 2 days because of the observations that need to be made. The parts of this paper will explain the procedure and the obs...
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  • Test Tubes Water Bath
    2,835 words
    ... ial's and Methods The first experiment involved examining the effect of temperature on aerobic respiration of germinated pea seeds. The students testing the effect of temperature, will be divided into two groups. The first group is Student Pair A. They will test the effect of 10 C, 20 C and 30 C temperatures on pea respiration rate. The second group is Student Pair B. They will test the effect of 40 C and 70 C temperatures on pea respiration rate. For both groups, the first procedure calls f...
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  • Sodium Hydroxide Bunsen Burner
    1,009 words
    Experiments 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...
    Free research essays on topics related to: test tubes, heavy metal, bunsen burner, sodium hydroxide, universal indicator
  • Sodium Hydroxide Universal Indicator
    854 words
    Experiments to Determine the Effect of Acids & Bases on Different Indicators and the pH of Common Cleaning Agents The aim of the first set of experiments is to find out and record the colour changes that are observed after a certain indicator is mixed with acids and bases to form a colour reaction. Once the selected indicator has been mixed with a acid that is both weak and strong and a base / alkali that is both weak and strong we are to record the colour and choose another indicator. The purpo...
    Free research essays on topics related to: sodium hydroxide, universal indicator, sulfuric acid, hydrochloric acid, test tubes
  • Test Tube Water Bath
    622 words
    Purpose: 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
  • Carbon Dioxide Amino Acid
    1,371 words
    Fermentation of glycine, water, sucrose, galactose, and glucose as induced by yeast. ABSTRACT This lab attempted to find the rate at which Carbon dioxide is produced when five different test solutions: glycine, sucrose, galactose, water, and glucose were separately mixed with a yeast solution to produce fermentation, a process cells undergo. Fermentation is a major way by which a living cell can obtain energy. By measuring the carbon dioxide released by the test solutions, it could be determined...
    Free research essays on topics related to: food source, carbon dioxide, test tubes, energy sources, amino acid
  • Brave New World Huxley Creates
    587 words
    Community, Identity, and Stability. This motto seems to appropriately state the nature of the hatchery, as well as the nature of the world that Huxley creates. The center strives for community, identity, and stability as it literally creates the people of the world. The motto helps Huxley use setting in three different situations. When describing community, Huxley creates the Infant Nurseries and the Neo-Pavlovion Condition Rooms to show setting. Huxley uses the Decanting Room to symbolize the s...
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  • Baking Soda Test Tubes
    868 words
    Carbohydrates 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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  • Test Tubes Cell Membranes
    1,411 words
    Chemical Stress On The Tonoplast Of Beta Chemical Stress On The Tonoplast Of Beta Vulgaris Taproot Cells. Abstract This is an experiment on how chemical stress effects cell membranes, specifically the tono plast of Beta vulgaris taproot cells. This experiment involved the treatment of the aforesaid cells with different concentrations of an acetone solution, and testing the resulting solution for absorbance of light by beta cyanine, using a spectrophotometer. It had been hypothesized that the hig...
    Free research essays on topics related to: cell membranes, test tubes, figure 1, five minutes, ref 1
  • Bunsen Burner Graduated Cylinder
    791 words
    Qualitative Analysis of Cation Introduction: The purpose of this experiment is to demonstrate the separation and identification of metal ions based on the insolubility of certain salts. The solubility rules should be taken into account. If a solution dissolves in water, the result contains both cations and anions. Analyzing different ions to discover their nature is the main goal of this experiment. Separation of the cations by testing the differences in solubility of different metal salts is do...
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  • Sodium Hydroxide Petri Dish
    1,559 words
    Detection 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
  • Test Tube Aluminum Foil
    2,055 words
    Osmosis Lab Purpose The purpose of this lab is to determine the concentration of solutes inside of a potato s cell. We also want to know the composition of potato water and stuff. Also the scientific Phenomenon studied of diffusion/ Osmosis. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. Osmosis is process by which water molecules diffuse across a cell membrane from an area of higher concentration to an area of lower concentration. ...
    Free research essays on topics related to: test tube, low concentration, cell membrane, percent change, aluminum foil
  • Rate Of Reaction Bunsen Burner
    2,301 words
    For 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
  • Degrees Celsius Test Tubes
    1,993 words
    Effects of Temperature, pH, and Gelatin on Bromelain Introduction Bromelain is an organic catalyst that speeds up the rate of chemical reactions. Bromelain is used in this experiment to catalyze the break down of proteins and is called a proteolytic enzyme. Enzymes enable reactions to occur at a lower temperature and energy levels. This allows many reactions to occur inside living organisms that would otherwise have been impossible to take place. This enzyme is found in fruits, leaves, and stems...
    Free research essays on topics related to: degrees celsius, ph levels, five minutes, reaction rate, test tubes
  • Hydrogen Peroxide Graduated Cylinder
    1,654 words
    Situations That Govern the Pace of an Enzymatic Reaction: Enzyme Concentration, Temperature, and phone Saunders BSC 1010 C; T, R: 11: 50 - 12: 05 Lab: T: 12: 15 - 3: 05 INTRODUCTION: An enzyme is any one of many specialized organic substances, composed of polymers of amino acids that act as catalysts to regulate the speed of the many chemical reactions involved in the metabolism of living organisms. The word enzyme comes from the Greek phrase? en yeast? . Many scientists who studied enzymes in t...
    Free research essays on topics related to: ph levels, chemical reactions, hydrogen peroxide, graduated cylinder, test tubes
  • Hydrogen Peroxide Test Tube
    320 words
    How 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
  • Sodium Hydroxide Potassium Hydroxide
    1,877 words
    Experiments To Determine The Effect Of Acids Experiments To Determine The Effect Of Acids &# 038; Bases Experiments to Determine the Effect of Acids &# 038; Bases on Different Indicators and the pH of Common Cleaning Agents The aim of the first set of experiments is to find out and record the colour changes that are observed after a certain indicator is mixed with acids and bases to form a colour reaction. Once the selected indicator has been mixed with a acid that is both weak and strong and a ...
    Free research essays on topics related to: potassium hydroxide, universal indicator, sulfuric acid, sodium hydroxide, nail polish
  • Test Tube First Four
    2,315 words
    Introduction: Qualitative Qualitative Analysis Qualitative Analysis Introduction: Qualitative analysis is used in the determination of the identity of a substance. It is different from quantitative analysis, which deals with the determination of the amount of a substance. In this experiment, qualitative analysis techniques are used to determine whether or not a sample contains a certain ion. When using this method, an unknown and a reactant are mixed. The result of the reaction leads to a conclu...
    Free research essays on topics related to: first four, test tube, first part, precipitate, h 2

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