Lab Ex#8: "Enzymes: Catalysts of Life" INTRODUCTION Enzymes are protein organelles where chemical reactions take place to generate energy within our cells. Without the energy produced from the cell enzyme activity‚ we would not possess the catalyst activity necessary for energy to produce movement. Each enzyme performs a specific function within our bodies. Those functions performed can be significantly altered with the introduction of variables outside their environment. Variables‚ such as temperature
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determined. Since melting point can be determined to an almost exact degree‚ finding a close melting point of the specific unknown can accurately point to the identification of the acid. In this case the best melting point range was 207-209 degrees Celsius. Melting point‚ while very helpful in identifying an unknown organic acid‚ is simply not enough. Next‚ a series of titration experiments had to be done. In the first series‚ a titration is completed of sodium hydroxide (NaOH) with KHP. Three reps
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Reuben Sarwal AP Lab 4 Determining the rate of Cellular Respiration Using Germinating and Dry Peas Purpose: To determine the rate of cellular respiration using dry and germinating peas. Introduction: In this lab‚ we are investing cellular respiration‚ specifically aerobic cellular respiration. Aerobic cellular respiration is the process by which cells consume oxygen during the oxidation of glucose and produce CO2 as a byproduct. During cellular respiration‚ glucose is split into a 6 carbon sugar
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Determining the Optimal Temperature and PH of Barley Amylase Abstract The purpose of this experiment was to find the optimal temperature and pH of barley alpha-amylase. I hypothesize that the optimal temperature would be 55 degrees Celsius and the optimal pH would be 5.5. In this experiment‚ the starch is used as a substrate to examine the optimum temperature and pH for the reaction of alpha amylase. It is known that the measuring of disappearance (absorbance) of the substrate starch with iodine
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minutes‚ the experiment was complete when the temperature stabilized. In conclusion‚ the fastest way to cool a soda was the soda in the freezer at -2 degrees Celsius. The other methods did not make the soda as cold and as fast as the freezer. The refrigerator soda dropped to 13 degrees Celsius‚ the ice cubes dropped to 2 degrees Celsius‚ and the ice bath dropped to 4 degrees in an hour. Overall‚ it can be concluded that if one wants a cooled soda at a fast rate‚ the freezer would be the best
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the hypothesis of interaction during this temporal change: by determining the temperature of water the female guppies will interact with males guppies. This experiment will consist of two treatments: warm water at 24 degrees Celsius and room temperature water at 20 degrees Celsius. I am looking for more detail here. It should be 3 paragraphs: overview of guppies‚ then behavior‚ then your experiment. Your sentences are a bit hard to follow. Make sure to state your research question within this paragraph
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conductivity heat is transferred as a consequence of temperature difference between 2 bodies‚ heat energy passes form a hotter to the colder body. Specific heat capacity is the amount of heat energy required in joules to raise 1kg of a substance by 1 degree Celsius‚ different substances absorb heat energy at different rates not all substances require the same amount of heat energy to increase the internal temperature of a substance this depends on the mass and the material it’s self. To demonstrate specific
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the procedures and equipment needed in these experiments‚ refer to page 73-74 in the STAWA Exploring chemistry stage 2 book Part A: solution process (dissociation) Solutions and their chemical equations | Initial temperature (in Celsius) | Final temperature (in Celsius) | Classification(exothermic or endothermic) | Sodium hydroxide NaOH(s) Na+(aq) + OH-(aq) + Energy | 15°C | 35°C | exothermic | Ammonium ChlorideNH4Cl(s) + Energy NH4+(aq) + Cl-(aq) + H2O(l) | 15°C | 10°C | endothermic |
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anatomy (fish scales‚ gills‚ fins‚ etc.). Or that they are some species that live in both biomes. The average temperature from the saltwater in the mixed layer (surface up to two-hundred meters) is between the twenty-four to the thirteen Degrees Celsius. Starting from the
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hydrogen chloride has properties: Hydrogen chloride has one molecule of hydrogen and one molecule of chlorine: Hydrogen chloride has a very powerful smell. It is in the form of a gas but only when it is at room temperature which is approximately 25 Celsius and when the pressure is high. The solubility of hydrogen chloride is very high this means that it can dissolve in water quickly because it dissolves many times in its own solution (the gas form of hydrogen chloride). It is very soluble because the
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