nearly colorless (2-5 mL). Suck dry for 10 minutes‚ then air dry for a further hour. Weigh the product and calculate %yield. Dissolve the crude product in a hot mixture of 2 mL ethanol and 1.3 mL chloroform (do not boil the resulting solution). Gravity filter through a Kimwipe plug in a Pasteur pipet. Cool the filtrate slowly to room temperature‚ then cool further in an ice bath. Isolate the product by suction filtration‚ wash with cold ethanol/H2O (20/1 v/v)‚ and suck
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Submit your completed lab report to the Lab: Photosynthesis Lab assignment link for grading. For information on how this assignment will be graded‚ please visit the Course Information sectionChlorophyll and Accessory Pigments A pigment is any substance that absorbs light. The color we see comes from the wavelengths of light that reflect. Chlorophyll‚ the green pigment common to all photosynthetic cells‚ absorbs all wavelengths of visible light except green. The green reflects back to our eyes
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Preliminary Unknown Report Alexis Grettenberger 800503431 Katie Young Alexis Grettenberger Biol 311 Lab 11/21/14 Preliminary Unknown Report Purpose: The purpose of this experiment was to identify a specific unknown bacterium that was isolated from a multitude of bacteria in a sample of contaminated dirt by running it through a series of identification techniques. Some of these techniques were simple staining‚ gram staining‚ and isolation techniques. The hypothesis of this experiment was that
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Presence of Alu element within PV92 on chromosome 18 in a mixed ethnical population and its connection with humans’ ancestral origins By Shiyu Song Biology 155Q LAB-A: 14:30-17:30 Dr. Jacob April 17th 2013 Abstract The Alu insertion (+) within PV92 on chromosome 16 usually reflects a person’s ancestral origin. This study aimed to find the correlation between the presences of Alu insertion (+) within PV92 on chromosome 16 within a population. We used PCR to detect the Alu insertions
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after gaining the energy‚ the electron returns to a lower energy-level. Energy must be given up when this occurs‚ and the energy is lost as light. Each line in the emitted light of hydrogen represents the movement of an electron from a specific outer level to a specific inner one. We judge this emitted light against the electromagnetic spectrum with a spectrometer. A
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Purpose Determine the acceleration in a quick sprint. Question What would the participant’s acceleration be if he/she sprints forward in a positive direction? Hypothesis/Prediction When a person sprints forward‚ it means he/she speeds up. Consequently‚ the acceleration should be positive. When the velocity accelerates at a constant rate‚ the acceleration should remain constant. Therefore‚ if the participant is moving toward a positive direction and the speed increases‚ then the acceleration
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Planarian Lab Report Hanna Klein Bishop Fenwick High School Planarian Lab Report Introduction Planarian worms are free-living flatworms that are not parasitic. Planarians have a three-cavity digestive system. Planarians are usually either carnivorous or scavengers. Planarians may eat other living‚ as well as dead‚ invertebrates‚ detritus or decaying organic matter. Planarians do not realize that are eating a lot‚ and can over eat resulting in death. Most planarians are freshwater forms that can
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Biomechanics Lab Report By Connor Blakely Question 1) All figures given in metres. All players using lofted clubs (9 irons). Cody | Trial 1 | Trial 2 | Trial 3 | Average | Air Ball | 18.8 | 21.8 | 21.2 | 20.6 | Practice Ball | 39.2 | 37.9 | 62.8 | 46.63 | Golf Ball | 115.75 | 77.2 | 82.65 | 91.87 | Graph to Show Cody’s Results with the Different Balls Bailey | Trial 1 | Trial 2 | Trial 3 | Average | Air Ball | 18.3 | 25.5 | 23.65 | 22.48 | Practice Ball | 38.2 | 41
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Bacterial Transformation Lab Report Backround: The plasmid pGLO contains an antibiotic-resistance gene‚ ampR‚ and the GFP gene is regulated by the control region of the ara operon. Ampicillin is an antibiotic that kills E. coli‚ so if E. coli‚ so if E. coli cells contain the ampicillin-resistance gene‚ the cells can survive exposure to ampicillin since the ampicillin-resistance gene encodes an enzyme that inactivates the antibiotic. Thus‚ transformed E. coli cells containing ampicillin-resistance
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The objective of this macromolecules lab was to identify the presence any of the major macromolecules in various every day food items. The three macromolecules that this lab was carried out for were carbohydrates‚ lipids‚ and proteins. There were five different experiments conducted and each of those experiments had one factor in common‚ they all had the same controls. The controls in this lab activity were already set for the lab activity. The controls were the distilled water and the baking soda
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