Abstract For this experiment we tested the effects of different adrenalin concentrations (0.001%; 0.01%; 0.1%) on the daphnia flea. The daphnia was placed on a slide with cover slip in order to examine its heartbeat by using the microscope. Aim In this Lab we will study the effect of different concentrations of adrenalin on the heart rate daphnia‚ the water flea. It is expected to recognize a threshold of the daphnia in its reaction the three different adrenalin concentrations‚ in terms of heart rate
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Taylor Hill Lab 6: Enzymes Purpose: The purpose of this lab is to test for enzyme activity‚ look at enzyme specificity‚ and how temperature affects enzyme activity. Hypothesis: I believe that the room temperature activity will produce the most activity. Materials: 3% hydrogen peroxide‚ a household blender‚ potatoes (3 medium size potatoes‚ that are peeled and quartered)‚ tap water‚ 8 test tubes‚ 8 transfer pipets‚ sugar packets‚ salt‚ a small saucepan‚ a refrigerator with a freezer‚ stove
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* * * Data Measurement Lab Report Three BIO 100 Lab Jackie H. Andrews July 13‚ 2013 * * * * Abstract: In this laboratory we utilize simple measures of physical quantities (for example‚ distance‚ and mass) and use the measurements to calculate or convert other physical quantities (such volume and area). We also use mathematical calculations and formulas to make conversions from one unit of measurement into another unit of measurement (for example‚ a
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was then used to transfer 4ml of anhydrous ether to the vial. The syringe was then utilized to transfer 0.8 ml of this solution and the reaction was allowed to proceed until the solution turns brown and cloudy. The conical vial was then rinsed with 2 ml of anhydrous ether to get any remaining solution into the reaction vessel. Simultaneously‚ 1.09 g of benzophenone and 2ml of anhydrous ether were added to a 3ml conical vial and gently stirred. The reaction vessel was taken off of the hot plate and
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AP Biology 6th Mr.Scofield Blast Lab Background: Between 1990–2003‚ scientists working on an international research project known as the Human Genome Project were able to identify and map the 20‚000–25‚000 genes that define a human being. The project also successfully mapped the genomes of other species‚ including the fruit fly‚ mouse‚ and Escherichia coli. The location and complete sequence of the genes in each of these species are available for anyone in the world
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1. Why are spindle fibers important for mitosis? (5 points) Spindle fibers work as a path for chromosomes to travel(Campbell‚ 2009). 2. State the four bases that make up DNA. (4 points) a. (A)-Adenine b. (G)-Guanine c. (T)-Thymine d. (C)-Cytosine (Campbell‚ 2009). 3. What are the two base pairs? (2 points) a. AG b. CT 4. Answer the following questions: a. Define the term crossing over. (3 points) The phase in meiosis where chromosomes exchange segments of genetic materials (Campbell‚ 2009). b. Explain
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Chapter 1: May/June 06 1 What is the resolution‚ in nanometres‚ of an electron microscope and of a light microscope? A electron microscope 0.5 light microscope 20 B 0.5 200 C 5.0 20 D 5.0 200 2 The diagram shows a drawing of an electron micrograph of a cell. Which structures are surrounded by double membranes? Golgi apparatus lysosome mitochondrion nucleus cytoplasm A ✓ ✓ ✓ ✓ ✓ B ✓ ✗ ✗ ✗ ✗ C ✗ ✗ ✓ ✓ ✗ D ✗ ✓ ✗ ✗ ✓ 3 In which animal cells would Golgi apparatus be most abundant
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1. Who sang at the Grammy’s in Spanish in the late 1990s? What was the reaction? Ricky Martin shocked the audience by singing in Spanish at the 1990’s Grammy Awards. Eventually‚ the audience gave Martin a standing ovation for his brilliant song. 2. When did Latin music burst back on the scene? What song brought it back to the mainstream? What effect did it have? Latin music came back onto the scene 15 years before Ricky Martin’s performance with Gloria Estefan’s “Conga”
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Light Microscopy Lab Lab write-up 1 Parveen Rajper Biology 101 Principles of Biology 1 September 29‚ 2012 Introduction: The light microscope helps see the microscopic world that the naked eye cannot see. If there were no microscopes in the world‚ than it would be very difficult to understand the many particles that surround the living world. The purpose of this lab experiment is to become familiar with a microscope. It is hypothesized that it will be difficult
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Temperature and enzyme activity Aim: To determine the effect of which the temperature of the enzyme has on the rate of the enzyme catalysed reaction. Hypothesis: The rate of reaction of an enzyme catalysed reaction will increase as the temperature of the enzyme approaches the optimum temperature. Surpassing the optimum temperature will result in a drop in enzyme activity. Materials: 6% hydrogen peroxide Liver suspension 10 test tubes 4 beakers Thermometers Measuring cylinders Test
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