times throughout the lab. 2) Fill the cuvette 2/3 of the way with water. 3) Select the appropriate wavelength on the spectrophotometer. 4) Place the cuvette in the spectrophotometer and click the calibrate button. 5) Put 5mL of stock solution into test tube. 6) Fill the cuvette 2/3 of the way with the first solution. 7) Place the cuvette in the spectrophotometer. 8) Wait a few seconds and record the absorption on your data table. 9) Put 4mL of stock solution and 1mL of water in a test tube to
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ectothermic crustacean commonly referred to as a water flea. Its body is transparent. Because of its
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_______________________________________________________________________ I. Introduction Photosynthesis the process where plants use sunlight (energy) to synthesize foods forming the products carbohydrates and water (H20 + CO2 + Light CH2O + O2). For photosynthesis to take place they need water‚ carbon dioxide and light and chloroplasts. Light is absorbed inside he thylakoid membrane of the chloroplasts‚ and the carbohydrate reaction or synthesis takes place in the stroma. In plants there are five
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Instructor Biology 1111 4-5 Lab Topic 4: Microscopy Elodea Cells at ___X Elodea Cells at ___X Report Sheet—Lab Topic 4 1. Draw and label each of the organisms available. Cheek Cells at ___X Cheek Cells at ___X Name _______________________________ Date_____________ Instructor ___________________________ Section___________ _________________________ 4-6 Lab Topic 4: Microscopy 2. Fill in the following table: Compound Microscope Dissecting Microscope Types of Light Available Powers
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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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amount of substance present. For example‚ one gram of lead and one ton of lead have the same density. Density also does depend on temperature. For instance cold water is denser than warm water; ice is less dense than both. The method used for determining the density of a substance depends on the nature of the substance. In this lab the densities of unknown irregularly shaped solids and liquids was determined. Accuracy and precision of the results will be estimated‚ and attention will be paid
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Biophysical Ecology Abstract: There are many patterns that can be observed throughout our environment. In this experiment‚ the temperatures of organisms in a biophysical environment were analyzed to see if a pattern could be recognized that was related to the behavior of an ectotherm. An ectotherm is an organism that relies on the environment to regulate its body temperature. Organisms such as Pseudemys (turtles) and Lacertilia (lizards) are examples or ectotherms. After arriving at Maxcy Gregg
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ground level in differential water temperature’s. Using a fluorescent light source gave us another perspective to keep in mind for it could be an advantage or loss to new current predications. Later in discussion‚ relationship to this experience among two other will
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In the humus lab were were trying to find out if hydrogen peroxide would cause a reaction and show us the amount of humus in the soil by putting gas into a graduated cylinder with water to make the water level lower therefore showing us how much humus the material being tested contained. It showed that the sand was lacking humus but the mushroom compost was the most rich in humus. My hypothesis was correct because I predicted that the mushroom compost would produce the greatest amount of humus out
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AP Biology Lab: Catalase (Enzymes) Abstract In this laboratory exercise‚ studies of enzyme catalase‚ which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme
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