carbon traveling through the biosphere in the carbon cycle‚ and the movement of energy and materials that are used during photosynthesis and cellular respiration. The cycling of matter and energy is essential for life and has great effects on a number of processes. One example of the cycling of matter and energy is a food web. A food web is a graphic that depicts
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1. Explain how photosynthesis and respiration are linked in order to provide you with energy from the food you eat. To start off with we will need to define photosynthesis and respiration. Photosynthesis is a process in which carbon dioxide‚ water‚ and certain inorganic salts are converted into carbohydrates by green plants‚ algae and certain bacteria using energy from the sun and chlorophyll (dictionary.com). Respiration is all of the physical and chemical processes in an organism by which oxygen
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EXPERIMENT – 9 To Prove that Light is Necessary for Photosynthesis. Aim : To show experimentally that light is necessary for photosynthesis. Requirements : A potted plant‚ iodine solution‚ black paper strip‚ paper clips‚ water bath. EXPERIMENT PLEASE VIEW THE ANIMATION FILE FOR THE PROCEDURE Observation : 1) The region of the leaf which was exposed to sunlight turns blue in colour. 2) The region of the leaf covered with black strip turns brownish in colour
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no growth. 2. How does increasing light intensity affect the rate of photosynthesis? Light intensity is a factor which can limit the rate of photosynthesis because if the light intensity is increased the rate of photosynthesis increases. However‚ at higher light intensities‚ the rate of photosynthesis will level off. 3. Describe the process of photorespiration. What is its effect on the rate of photosynthesis? Photorespiration is the process of combining PGA and glycolate to make
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Courtney S. 4th Period SINKERS and FLOATERS Purpose:The purpose of this investigation is to provide an overview of photosynthesis and to design and conduct an experiment to test the factors that affect the rate of photosynthesis. Hypothesis:If 10 leaf discs are placed into 2 plungers and placed under a lamp the CO2 rate will speed up the process of photosynthesis. Materials: -Fluorescent lamp - Hole punch - 1 Sharpie marker -20 leaf discs -Syringes -12 mL cups Data Table Start 2 4 6 8
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Plant Pigments and Photosynthesis Problem: We are going to separate and identify pigments and other molecules from cell extracts through a process called chromatography. We will also test the theory that light and chloroplasts are required for light reactions to occur. Background: Pigments are chemical compounds which reflect only certain wavelengths of visible light. This is what makes them seem colorful. Many things contain pigments including flowers‚ corals‚ and even skin. More important than
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cell Mitochondria Most energy is released by respiration here Ribosomes Protein synthesis happens here Extra parts of plant cells Part Function Cell wall Strengthens the cell Chloroplasts Contain chlorophyll‚ which absorbs light energy for photosynthesis Permanent vacuole Filled with cell sap to help keep the cell turgid Bacterial Cells A bacterium is a single-celled organism. A bacterial cell has a different structure to an animal or plant cell. It has cytoplasm‚ a membrane and a surrounding
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...........................3 Theoretical Aspects 4 Affects of light intensities on plant photosynthesis measured by the amount of oxygen produced ..5 Experimental Aspects 6 Factors that Affect the rate of photosynthesis ...........7 Investigating the Affect of Light on plant photosynthesis ......8 Hypothesis 8.1 Variables .. 8.2 Apparatus
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and carbon dioxide. Photosynthesis Plants take in carbon dioxide and water and use them to make food. Their food is simple sugar — glucose. Photosynthesis (continued) Plants pull the carbon off CO2 and use the carbon in glucose. (They do not need the oxygen for this. They get that from water‚ H2O.) Plants release the oxygen (O2) back into the atmosphere. Other organisms use the free oxygen for respiration. How are photosynthesis and cellular respiration
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Chloroplasts are the most important plastids found in plant cells. It is the structure in a green plant cell in which photosynthesis occurs. Chloroplast is one of the three types of plastids. The chloroplasts take part in the process of photosynthesis and it is of great biological importance. Animal cells do not have chloroplasts. All green plant take part in the process of photosynthesis which converts energy into sugars and the byproduct of the process is oxygen that all animals breathe. This process
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