Introduction to Photosynthesis

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What is photosynthesis?
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Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
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Where in a plant does photosynthesis occur?
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Photosynthesis primarily occurs in the chloroplasts, which are found in the cells of plant leaves.
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What are the two main stages of photosynthesis?
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The two main stages of photosynthesis are the light-dependent reactions and the Calvin cycle (light-independent reactions).
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What is the primary pigment involved in photosynthesis?
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The primary pigment involved in photosynthesis is chlorophyll.
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Why are leaves green?
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Leaves appear green because chlorophyll absorbs light in the red and blue regions of the visible light spectrum and reflects green light.
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What is the main purpose of photosynthesis?
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The main purpose of photosynthesis is to convert solar energy into chemical energy and store it in the bonds of glucose.
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Which gas is used in photosynthesis?
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Carbon dioxide (CO2) is used in photosynthesis.
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Which gas is released during photosynthesis?
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Oxygen (O2) is released during photosynthesis.
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What role does water play in photosynthesis?
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Water provides electrons and hydrogen ions during the light-dependent reactions and is a source of oxygen as a byproduct.
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How does sunlight affect photosynthesis?
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Sunlight provides the energy necessary for the light-dependent reactions to produce ATP and NADPH, which are used in the Calvin cycle.
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What is the chemical formula for glucose, the end-product of photosynthesis?
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The chemical formula for glucose is C6H12O6.
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How is ATP used in photosynthesis?
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ATP provides energy for the Calvin cycle, where carbon dioxide is fixed into glucose.
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How are NADPH and ATP similar in their role during photosynthesis?
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Both NADPH and ATP are energy carriers that provide the necessary energy and electrons for the synthesis of glucose in the Calvin cycle.
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Why is photosynthesis essential for life on Earth?
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Photosynthesis is essential because it produces oxygen and organic compounds, which are vital for most life forms on Earth.
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How do stomata function in the process of photosynthesis?
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Stomata are openings on the leaf surface that allow gas exchange; they let carbon dioxide in and oxygen out during photosynthesis.
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