Photosynthesis Abstract: An experiment was carried out to determine how certain factors such as light intensity and availability of carbon dioxide‚ affected the rate of photosynthesis. The rate of photosynthesis was measure by the amount of oxygen produce (cm3/min). A valid conclusion was made and most of the results were in accordance with the prediction‚ although there were some anomalies present. The errors and limitations were evaluated and some improvements were suggested. Introduction: Photosynthesis
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Elodea & Photosynthesis Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. Introduction This lab has been created in order to find what extent does distance from a light source (5cm‚ 10cm‚ and 15cm) affect the rate of photosynthesis (measured in bubbles / 3 min) in Elodea water plants. Hypothesis:
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#2 Elodea and Photosynthesis by __________________ Name:_____________________ Class:_____________________ Teacher:_____________________ Date:_____________________ Elodea and Photosynthesis Introduction: Photosynthetic organisms (cyanobacteria) first evolved about 3.5 billion years ago and are the oldest know fossils on Earth. Cyanobacteria live in water‚ can manufacture their own food‚ and are one of the most important groups of bacteria on Earth. The Cyanobacteria have been important
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effect of varying the distance (cm) of the Elodea plant from the light source at (5‚ 15‚ 25‚ 35 and 45 (cm)) (±0.05) on the photosynthetic rate by counting the number of oxygen bubbles rising up the test tube per minute (bubbles min^(-1)). The hypothesis was supported because as the light intensity increased‚ the rate at which oxygen bubbles rising to the top of the test tube also increased – for example‚ at the closest distance of 5 cm‚ the rate of photosynthesis was at its highest‚ with the optimum
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Name _________________________________ Per. ________ Unit 5: Photosynthesis & Respiration Date: ____________ Lab #14: Photosynthesis and Carbon Dioxide Consumption Elodea and Bromothymol Blue Photosynthesis is the process by which plants take carbon dioxide from the atmosphere‚ add water‚ and use the energy of sunlight to produce sugar. Write the equation for photosynthesis: Photosynthesis occurs in the chloroplast‚ an organelle in plant cells that contains the molecule chlorophyll
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Photosynthesis Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration‚ or converted into starch and stored. Oxygen is produced as a by-product. This process is called photosynthesis. Temperature‚ carbon dioxide concentration and light intensity are factors that can limit the rate of photosynthesis. Photosynthesis summary Photosynthesis [photosynthesis: The chemical change
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Photosynthesis is a process through which plants and some certain types of bacteria get energy from the sun’s UV-rays and use it to create and store sugar that is transformed into ATP by cellular respiration later on in the process. In plants‚ this process takes place in chloroplasts‚ which concentrate in the mesophyll cells‚ with the help of chlorophyll‚ the green pigment‚ which is directly involved in photosynthesis. It is important to understand that we see leaves green simply because the green
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energy in food originally came from ATP. False pulling together 12. The term photosynthesis means “pulling apart with light” in Greek. True__ 13. The energy of sunlight is stored in the chemical bonds of carbohydrates. 14. Complete the table comparing two types of organisms. Autotrophs and Heterotrophs Type Description Examples Autotrophs An organism that is able to create its own food through photosynthesis (simple organic substances) Plants Heterotrophs An organism that “feeds”
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Jeanette Jones Biology Period:2nd Research Essay #2 Photosynthesis is a very beneficial process. It consists of products that are an good impact on different things like its impact on species. Plants are important in regards to everything living and everything period. One way I believe photosynthesis is most beneficial in its relation to species. All living things go through a process. Plants in particular are very important
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Photosynthesis By Sofie Inwood Aim: To determine whether chlorophyll and light is necessary for starch formation. Hypothesis: Chlorophyll and light are both necessary for starch formation. Materials: * 600mL beaker * Access to water * Safety glasses * Bunsen burner * Tripod * Gauze mat * A large white evaporating dish * Scissors and forceps | * Glass stirring rod * Test tube rack * Test-tube (30mm x 180mm) * Methylated spirits * Iodine solution * 100mL
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