The effect of light quantity on photosynthesis of green land plants Introduction Photosynthesis is the process of converting light energy into chemical energy (Hoober 1984). Pigments within chloroplasts‚ primarily chlorophyll‚ absorb the incoming solar energy which excites their electrons (Hoober 1984). These pigments exist in photosystems in the thylakoid membrane of the chloroplast (Ladiges et al.2010). As the electrons return to ground level‚ they are captured by the electron acceptor in the
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Effects of Photosynthesis of Spinach Leaves in Different Light Conditions Introduction Photosynthesis is the process of converting solar energy‚ carbon dioxide (CO2)‚ and water (H2O) into carbohydrates (CH2O) and oxygen (O2). Sometimes the end product of photosynthesis is glucose (C6H12O6). Photosynthesis takes place in the chloroplasts of plant cells. Here membranous thylakoids are stacked in grana surrounded by the stroma. During the light reactions‚ pigments within the thylakoid membranes
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The data found in this experiment supported the initial statement in the hypothesis‚ that blue would have the highest rate of photosynthesis (see Figure 7). The second part of the prediction was refuted by the data‚ as green had a higher rate than both yellow and red. This result seems to go against the experiment‚ however the answer is in Figure 5. When adding green food coloring to the solution (see Methods) dilution also took place. When comparing the wavelength of 540 nm (see Tables 1 & 2) with
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energy from the sun and use it to form starch molecules. The process by which this happens is called photosynthesis and results in the formation of oxygen and glucose. Plants take in carbon dioxide‚ water‚ and light then release oxygen back into the air. This process happens because of the movement of hydrogen to the hydrocarbons that are produced during photosynthesis. The discovery of photosynthesis is attributed to Dutch scientist Jan Ingenhousz who was the first to find that light is necessary to
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6.1 Overview of Photosynthesis 6.1.1 Identify the cellular structures where photosynthesis occurs. A: It occurs in plants inside of the chloroplast 6.1.2 Locate the structures within a chloroplast and list their functions. A: A double membrane surrounds a fluid-filled area called the stroma. A third membrane system within the stroma forms flattened stacks called thylakoids‚ which in some places are stacked to from grana. The space within each thylakoid is believed to be connected to the space
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How does light intensity affect the rate of photosynthesis? Poorly Pondweed Questions 1) How does light intensity affect the rate of photosynthesis? 2) How does temperature affect the rate of photosynthesis? sunlight carbon dioxide + water glucose + oxygen chlorophyll sunlight 6CO2 + 6H2O àààààà C6H12O6 + 602 chlorophyll Prediction I predict that the more intense the light‚ the higher the rate of photosynthesis. To photosynthesise‚ plants need light. It provides the energy for the process
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water in front of the test tube(containing the pondweed) because the water in the beaker will absorb the heat coming from the light bulb. The plant will not be affected by the heat and due to my previous research it will result in faster rate of photosynthesis and plant will survive longer. Each of my experiments will be 60 seconds long to get decent measurable results. The light source I will be using has a voltage of 35V and will have a beaker of water in front of it‚ and 15cm away front he end of
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Photosynthesis is the process of transforming light energy into chemical energy that is used to build carbohydrates. Light reactions occur in the thylakoid membrane of the chloroplast‚ sunlight and water are the substrates for this reaction. The conversion of light energy can go through two pathways: noncyclic and cyclic. In noncyclic light transport‚ both Photosystems II and I are involved producing ATP and NADPH. Photosystem II absorbs 680 nm of light energy‚ with the oxidation of water; chlorophyll
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investigate the effect of carbon dioxide concentration on the rate of photosynthesis Introduction Photosynthesis is a process that is essential for every living organism. Organic substances‚ such as glucose‚ are made from carbon dioxide and water by light energy from the sun. The light energy is absorbed by chlorophyll and converted to chemical energy. During the process‚ oxygen is released as a by-product. The rate of photosynthesis is affected by a few of factors‚ including light intensity‚ temperature
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What Factors Affect the Rate of Photosynthesis in living leaves? Abstract: In this lab‚ four different types of leaves were tested to see the rate at which each leaf photosynthesized. This lab demonstrates how plants store light‚ capture light‚ and use light as energy for reproduction and growth‚ by photosynthesis. The control in this experiment was spinach‚ which was tested before any of the other plants were. The other plants that were tested were English Ivy‚ C4 Plant‚ and a multicolored
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