enzyme‚ just like any other enzyme‚ has an optimum PH and temperature range in which it is most active‚ and in which the substrate binds most easily. The purpose of this experiment was to determine (1) the reaction rate of an amylase enzyme in starch and (2) the environmental factors that can affect the enzymatic activity. The hypothesis‚ in relation to the enzymatic activity by variables such as the substrate concentrations‚ temperature‚ PH and chemical interactions on the rate of reaction
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Germination of Eggplant (Solanum melongena Linn.)‚ Okra (Abelmoschus esculentus (L.) Moench)‚ and Rice (Oryza sativa Linn.) Seeds Soaked in Alkaline Water In Partial Fulfillment of the Requirements In Bi 160 and Bi 160.1 First Semester‚ AY 2012-2013 A Research Paper Presented to Anneke Padolina‚ Ph.D Department of Biology Ateneo de Manila University Submitted by: Medina‚ Kryzka August 2012 I. Introduction The life cycle of plants is characterized by the change in ploidy
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Part 1 Part 1 of the experiment investigated the effect of different temperatures on beetroot cell membranes (a type of plant cell). Through this experiment‚ the process of diffusion and osmosis was in action. Various temperatures ranging from low temperatures to high temperatures such as -5⁰C‚ 5⁰C‚ 30⁰C‚ 50⁰C and 80⁰C were used to investigate the temperature effects on beetroot cell membranes. The hypothesis predicted that the higher the temperature the darker the beetroot substance and the lower
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hope that there was a way to survive the virus even for a short period of time. C. CHEMISTRY CONCEPT: The chemistry in this quote shows that the virus didn’t clog his blood like it did all the rest of the people. The man stayed alive because his blood pH level was too low for the virus to survive. The man in the white robe got acidosis because he had taken a bottle of aspirin and had drunk sterna for many days following the accident. 2. A. QUOTE: "Every time he looked down the throat‚ the child closed
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Objective of experiment * The objective of the experiment is to assess the effect of different pH conditions on enzyme activity. Hypothesis * I feel the pH affected the enzyme activity to produce product. Prediction * If the pH affected the enzyme activity to produce product‚ then rate of reaction will change. Procedure * The procedure that we followed was to take two test tubes and label one pH2 and one pH10 and incubate 1 ml of each solution for 30 minutes. Then after 30 minutes
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catalyzes the synthesis of a large molecule from two smaller molecules. (4 marks) 9. Explain how the following environmental factors affect enzyme activity: a. pH (2 marks) b. Enzyme and substrate concentration (2 marks) 10. Examine the following data for three enzymes (A‚ B‚ and C). Each has been tested at a number of temperatures and pH levels to measure their activities. Based on these results‚ for each enzyme (A‚ B‚ and C)
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2008). Soil PH directly affects the life and growth of a plant‚ since it affects the availability of the nutrients needed for plant life. Most nutrients are in their most available state within a PH of 6.0 – 6.5 (Kissel and Miller‚ 2008). To germinate‚ seeds need favourable external conditions as well. In this lab the effect of acidic conditions on seed germination using lettuce seeds as the model has been observed. These properties were investigated using acidic solutions with various PH values. However
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In natural water‚ the pH can vary greatly based on the contents of the water. The pH test is important in relation to the the effects of hydraulic fracturing due to the chemical contents of the fracturing fluid. When these chemicals are mixed with any water solution‚ they cause the pH to increase greatly due the acidity of the chemicals. This can have a disastrous impact on the organic matter living the
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Determination of Percent Potassium & Percent Iron in an Iron Oxalate Salt by Ion Exchange Introduction: This experiment involves determining both the percent potassium (K) and iron (Fe) in a single titration after passing a solution containing a known mass of complex salt through an ion exchange column. Ion Exchange: Certain materials called ion exchange resins consist of rather large molecules which contain ions that can be displaced. The resins are solids‚ insoluble in water‚ usually granular
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Abby Kong Acid rain on plant -Background information Unpolluted rain is normally slightly acidic‚ with a pH of 5.6. Carbon dioxide (CO2) from the atmosphere dissolves to form carbonic acid. Acid rain is rain that has been made acidic by certain pollutants in the air. Acid rain is a type of acid deposition‚ which can appear in many forms. Wet deposition is rain‚ sleet‚ snow‚ or fog that has become more acidic than normal. Dry deposition is another form of acid deposition‚ and
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