Associate Program Material Cell Energy Worksheet Answer the following questions: Cellular respiration: • What is cellular respiration and what are its three stages? A living version of internal combustion-is the main way that chemical energy is harvested from food and converted to ATP energy‚ it is also called an aerobic process‚ which is just another way of saying that it requires oxygen. So cellular respiration is defined as the aerobic harvesting of chemical energy
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Chemoheterotrophic organisms obtain energy from the oxidation of organic compounds 7. What is photosynthesis and where does it take place? Photosynthesis is a process used by plants and other autotrophic organisms to convert light energy‚ normally from the sun‚ into chemical energy that can be used to fuel the organisms’ activities. Carbohydrates‚ such as sugars‚ are synthesized from carbon dioxide and water Photosynthesis is the means by which plants harvest light energy to make their own food it takes place
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IB Home Standard Level Higher Level Options Additional Resources 8.2 Photosynthesis 8.2.1 Draw and label a diagram showing the structure of a chloroplast as seen in an electron micrograph 2D Representation 3D Representation Electron Micrograph 8.2.2 State that photosynthesis consists of the light-dependent and light-independent reactions Photosynthesis is a two-step process: 1. The light dependent reactions convert the light energy into chemical energy 2. The light
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energy by converting carbon dioxide and water into glucose and oxygen‚ known as a process called photosynthesis. By adding hydrogen ions to carbon dioxide C-H bonds are made that hold energy which is released in mitochondrion‚ an organelle. This process of the release of energy is known as respiration. Without respiration‚ photosynthesis would not be able to perform. The process of photosynthesis is able to perform its duties with the help of an organelle called chloroplast as well. Within the
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germination of a seed affected by sunlight?” Experimental Hypothesis: We believe these results will occur. 1. The seeds that are water deprived (1 mL of H2O a day) will not grow very well due to a lack of water which is important in photosynthesis and also lacks nutrients. The seeds may also die off due to a lack of water. 2. The seeds that are have a proper amount of water (10 mL of H2O a day) will grow the best and achieve the greatest height‚ and overall best appearance.
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The rate of photosynthesis may vary with changes that occur in environmental temperature‚ wavelength of light‚ and light intensity. Using a photosynthetic organism of your choice‚ choose only ONE of the three variables (temperature‚ wavelength of light‚ or light intensity) and for this variable. • Design a scientific experiment to determine the effect of the variable on the rate of photosynthesis for the organism • Explain how you would measure the rate of photosynthesis in your experiment
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Identity of Cyanobacterial Toxins Cyanobacterial toxins are toxins produced by cyanobacteria‚ or blue-green algae. They include neurotoxins (e.g.‚ anatoxins)‚ hepatotoxins (e.g.‚ microcystins)‚ skin irritants and other toxins. Both hepatotoxins and neurotoxins are produced by cyanobacteria commonly found in surface water supplies and therefore appear to be of most relevance to water supplies at present.1-3 However‚ the neurotoxins are relatively unstable and‚ as such‚ are not considered to be as
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of an additional phosphate group on the 2’ position of the ribose ring that carries the adenine moiety.In photosynthetic organisms‚ NADPH is produced by ferredoxin-NADP+ reductase in the last step of the electron chain of the light reactions of photosynthesis. It is used as reducing power for the biosynthetic reactions in the Calvin cycle to assimilate carbon dioxide. Synthesis The oxidative phase of the pentose phosphate pathway is a major source of NADPH in cells‚[1] and in cells without mitochondria
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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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Today photosynthesis is widely known across the globe‚ and with all of its reactions. It is often broken into two steps: the “light” reactions and the “dark” reactions. Both of these reactions are fundamental to the process of photosynthesis‚ and photosynthesis is vital for plants to survive. Because plants are the main energy source for organisms on Earth‚ and without them‚ we could not survive‚ photosynthesis is extremely important in the study of life‚ biology. Without Melvin Calvin‚ however‚
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