Environmental Systems Bio-cylinder Lab Report Planning: The question that we‚ as a class‚ were trying to answer was: How long can the organisms survive within a sample-closed ecosystem? To answer this three separate classes had the opportunity to create their own bio-cylinders‚ place a specified number of organisms‚ seal it‚ and observe the cylinder for however long the organisms were able to survive. Each class made small modifications to the number of fish and snails that placed within the
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To prepare a temporary mount of aleaf peel to show stomata. B) Materials required:- Fresh leaves of plant‚ compound microscope‚ glass slides‚ cover slips‚ water‚ glycerine‚ safranine‚ blotting paper‚ needles‚ brush etc. C) Theory :- i) Stomata are minutepore present on the surface of the leaves. ii) Though they are found on both the upper and lower epidermis of the leaf‚ they are more in number on the lower epidermis. iii) Each stoma has two bean shaped
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that live in the water‚ their oxygen has to be obtained from the water. The amount of oxygen that these organisms can take from the water is hugely dependent on the dissolved oxygen content in the water. The purpose of the two experiments done in this lab was to see the ideal condition to produce the most dissolved oxygen concentration. We approached the challenge of finding the ideal condition by testing two different variables in two different experiments. In the first experiment‚ we tested the different
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Photosynthesis Lab Report Purpose: To research the effect of different wavelengths (colors) of light on plant growth during photosynthesis. Background Information: Photosynthesis is the process by which sunlight is captured by chloroplasts within plant cells and turned into energy. This energy is used to help the plant grow roots‚ leaves‚ flowers and fruit. Energy is required by living things
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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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Introduction: Photosynthesis is the trapping of carbon dioxide and its subsequent reduction to carbohydrate‚ using hydrogen from water. Hexose sugars and starch are commonly formed so the following equation is often used: light energy 6CO2 + 6H2O C6H12O6 + 6O2 carbon dioxide water chlorophyll carbohydrate oxygen Photosynthesis consists of two stages: These are the light-dependent reactions‚ for which light energy is necessary‚ and the light independent reactions series of light-dependent reactions
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Dissolved oxygen enters water through the air and plant. Dissolved oxygen produce by the atmosphere and the process is called air saturation. The gasses a stable body of water with no stratification‚ dissolved oxygen will remain at 100% air saturation. 100% air saturation means that the water is holding as many dissolved gas molecules as it can in equilibrium. At equilibrium‚ the percentage of each gas in the water would be equivalent to the percentage of that gas in the atmosphere like its partial
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Lab Report Procedure 6.1: Perform Benedict’s test for reducing sugars. Introduction: Benedict’s tests allows for the detection of the presence of reducing sugars. All monosaccharides are reducing sugars since all of them have active carbonyl group. Some disaccharides that are exposed to a carbonyl group are also reducing sugars but less reactive than monosaccharides. By mixing the sugar solution with Benedict’s solution and heating them‚ a redox reaction will occur. The copper (II) sulphate
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of CO2. These values of the photosynthesis (plus respiration) rates in red light were 0.443‚ -0.141‚ and -1.1 ppm/g/min with a mean value of -0.27 ppm/g/min. The values of photosynthesis (plus respiration) rates in blue light were 2.449‚ 1.667‚ and 2.997 ppm/g/min with a mean value of 2.36 ppm/g/min. A t-test comparing the mean photosynthetic rates under red and blue light indicated no significant difference
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3. Explain how the products of photosynthesis are transported‚ partitioned and allocated during plant growth and reproduction. Photosynthesis has been the focus of much attention than any other physiological process in flora physiology. Photosynthesis is a complex plant metabolic process‚ similar to respiration and fermentation‚ in which a plant can synthesize organic matter using light and chlorophyll. According to Kirk 1994: Photosynthesis is a complex physic-chemical process that is the central
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