The results did not support this hypothesis. It has been established that heart rate in Daphnia magna increases when there is a progressive lack of oxygen present. (Baumer et.al 2002). When the salinity of water increases there are increases in Na+ ions as well as Cl- ions. This increase in ion concentration causes a change in osmotic alternation and a competition between all the ions. (de la Paz Gomez-Diaz and Martinez-Jeronimo 2008). Although increase in
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(100 ºC) and an acidic pH. Enzyme C produced the most maltose at 37 ºC (body temperature) and a pH of 7 (neutral). Conclusion In a prior lab‚ it was given that the enzyme Aspergillus oryzae (fungus) works best at warm temperatures and an acidic pH‚ porcine (pig) works best at body temperature (37 ºC) and
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BIOLOGY LAB REPORT (UNIT 7: ENZYMES) GENERAL Enzymes are protein that acts as catalyst‚ lowering the activation energy need for reactions to progress in cells. The reaction can still occur without the presence of the enzyme‚ but at a much slower rate. The activation energy is the minimum amount of energy need for a chemical reaction to occur‚ yielding from a given set of reactants. In enzymatic reactions‚ we have substrates which are reactants of reaction bound to an enzyme. While an active site
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called calorimetry. In this lab activity‚ calorimetry will be used to determine the specific heat of an unknown metal. This will be done by using a styrofoam cup calorimeter containing water. A calorimeter is insulated so as to minimize any loss of energy to the surroundings. Therefore‚ when a heated piece of metal is placed into the calorimeter‚ all of the energy should be accounted for. In other words‚ the energy released from the metal should be gained by the water‚ with no loss to the surroundings
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Botany Lab ------------------------------------------------- Introduction This study observed the effects of different body fluids and solutions relative to breaking down bacteria‚ specifically in the human body. The enzymes we studied‚ lysozomes‚ help the body lyse‚ or break down bacteria by targeting peptidoglycan in bacterial walls. The solutions and fluids studied were saliva‚ mucus‚ tears‚ a stock solution of lysozomes‚ and distilled water. The solutions were placed in agar containing Micrococcus
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eroxide into water and oxygen gas. The students have formed a hypothesis toward this experiment. If the speed of decomposition of hydrogen peroxide is related to the temperature then in high temperature it will speeds the decomposition of hydrogen peroxide. Materials ● Catalase ● Hydrogen peroxide 3% and 1% ● Forceps ● Filter paper discs ● Water ● Ice ● Water baths ● Vials ● Marking Pencils ● Stopwatch Procedure 1. Set up an ice bath (0°C)‚ a room temp water bath‚ a 37°C bath and a boiling water bath
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------------------------------------------------- Module title: EUC_4_005 Design and Practice ------------------------------------------------- Occurrence Number: [Overtype your occurrence Number here] ------------------------------------------------- Lab Group Number: [Overtype your lab group number here] ------------------------------------------------- Course: [Overtype name of course here] ------------------------------------------------- ------------------------------------------------- Student Name: [Overtype
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Antibiotic Lab Report By: Sierra Toll Hour: 6 Title: The effects of antibiotics on the growth of Escherichia Coli Problem: How do antibiotics affect the growth of E coli? Hypothesis: If Penicillin is applied to the bacteria‚ then the zone of inhibition will be larger. Background: The purpose of this lab was to see how effective a certain antibiotic is to kill E coli. The lab tested three antibiotics‚ Penicillin‚ Erythromycin‚ and Neomycin. The zone of inhibition‚ which is the amount of space
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The underlining purpose of the experiment was to show that error is ok as long as you know what the flaws are and be able to explain they happened. The lab involved burning a Marshmallow‚ a CHEEZ-IT‚ a Cheeto‚ and A Chex. The heat from the burning snack food is then carried into the H2O and used to calculate the energy content. An improvement that could be made was a replacement for the paperclip; it was
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then moves along the electron transport chain. The moving of electrons causes a hydrogen ion gradient that is used in the final step to produce ATP‚ by the ATP Synthase. The equation for this reaction is 6CO2 + 6H2O C6H12O6+6O2 or‚ carbon dioxide +water sugars + oxygen . This reaction takes place on the thylakoid membrane of the chloroplast and uses energy from sunlight to produce compounds like ATP and NADPH. The second stage of photosynthesis is the Calvin Cycle‚ which takes place in the stoma
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