In this lab, we were trying to identify certain macromolecules commonly found in food and other substances. These macromolecules were carbohydrates(both simple and complex), proteins, and lipids. Carbohydrates are a simple, short-term source of energy, and they are used in making cell structures. Carbohydrates are made up of monomers(which are comprised of single molecules) called monosaccharides. Monosaccharides include glucose, sucrose, and galactose. Two monosaccharides can be combined by removing
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This experiment was designed to test the effects of certain environmental factors and chemicals on the heart rate of Daphnia. The Daphnia’s transparency allows the heart to be identified and counted under a microscope when the Daphnia are exposed to these factors. To study the influence of these factors on the Daphnia, four petri dishes were filled with a few drops of room temperature water, ethanol, sugar water, and about 5℃ water respectively. The sugar water was made by mixing a dash of sugar
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The enzyme tyrosinase catalyzes the production and synthesis of melanin, which is the pigment that causes discoloration or browning in foods influencing their taste, flavor, and texture (Zaidi 1). For the best performance of foods, industries and homes across the globe result to using preservation, freezing, and blanching to prevent the loss of quality and oxidation reactions that occur. I chose to experiment with the common white button mushroom, also known as Agaricus bisporus, due to my grandparents'
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1. Sources of error? What challenges did you face? Did the esters smell as you expected? An incomplete reaction may be an error for the experiment because we did not time how long the test tube was placed into the beaker and removed it from the heat to identify the smell based on estimation. This can cause an error on the smell. The length of time in heat will also affect the completeness of the reaction. The challenges I faced working with this experiment was that I did not know how long to keep
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Introduction Daphnia, or commonly known as water fleas, are a very important food source to many ecosystems. However daphnia are very sensitive to changes in the water which means that small changes can cause the death of many daphnia. One such change is the increasing appearance of blue-green and green algae blooms in many ecosystems. Algae blooms are very toxic to multiple creatures in the ecosystem. Thus bringing up the question: If blue-green and/or green algae blooms become prevalent will
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Discussion: The purpose of this experiment is to identify an unknown organism over three weeks by performing lab exercises that were previously performed. The unknown #16 was chosen for this experiment. During the first week, The next step in determining this unknown was to perform the streak plate method for isolation of colonies of a 24-hour period in a 37o C incubator. The unknown organism grew on the media; observed white in color, raised with a smooth margin, shiny colonies on the TSA agar
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The results in figure 3, 5 and 5 showed that the hypothesis was somewhat supported as well as somewhat refuted. As the hypothesis stated that the group with the lowed BPM would be the control group, the test where daphnia stayed in the regular tank water. However the two tests with the different solutions of sugar was the opposite of what I projected would happen. The test with the solution that contained the orange juice had the highest BPM total for the daphnia. My hypothesis projected that the
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Describe the changes that occur in the ovaries and in the uterus during each of these stages being sure to relate those changes to the hormonal levels shown on your graph. A. Menstrual Phase (Days 0-5) - estrogen and progesterone are at their lowest points. The uterine lining is then shed due to the low progesterone levels. The dominant gonadotropic hormone during this period is FSH, which stimulates the ovarian cycle to begin the follicular phase. B. Preovulatory Phase (Days 5-11) - phase during
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The average blood glucose level for a non-diabetic is100 mg/dL however this fluctuates throughout the day due to the foods that are consumed. Levels are always higher after a meal but should be lower than 140 mg/dL. For a diabetic, 126 mg/dL or above and confirmed twice means that the individual has diabetes. There are many tests that are used to diagnose diabetes. The A1C test measures the average blood glucose over a period of two to three months and is a good indicator of how well it
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Honors Biology Laboratory Report Format This format is to be used for formal laboratory reports. All reports must be typed, using 10 or 12 point font. Include your name, name of partners, date, class and section. Laboratory reports are done individually; data is shared amongst groups, not interpretations. Correct grammar and spelling are expected. All writing is done using the passive voice and the past tense. Title • Reflect on the factual content of the paper
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