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Photosynthesis: Producing Energy for Ecosystems 1. Energy (light) from the sun reaches the plant’s leaves. This light reaches the _________________________ inside the plant’s cells. 2. Inside, carbon dioxide and water combine with light to create ________________ and _____________________. 3. NOT all photosynthesis happens in light; only half of the process actually occurs in the daytime, when the leaf captures light. The other part happens at night, when this energy is changed into food. 4. The energy (sugars) produced by the plant are used for the plant’s ________________ processes, but are also passed on to ________________ within an ecosystem. 5. Did you know? A plant uses mostly the red and blue parts of visible light. The green light waves are not used… that’s why plants appear to be green to the human eye! Plants have other chemicals and pigments, too. In autumn, many plants stop producing chlorophyll. This allows you to see the other pigments, which is why leaves change _______________________. 1. Explain how why plants are known as producers in an ecosystem. Use details from the lesson in explaining your answer. 2. What single-celled things would be producers in an ocean or lake? Photosynthesis: Producing Energy for Ecosystems 1. Energy (light) from the sun reaches the plant’s leaves. This light reaches the chloroplasts inside the plant’s cells. 2. Inside, carbon dioxide and water combine with light to create oxygen and glucose (sugar) 3. NOT all photosynthesis happens in light; only half of the process actually occurs in the daytime, when the leaf captures light. The other part happens at night, when this energy is changed into food. 4. The energy (sugars) produced by the plant are used for the plant’s life processes, but are also passed on to consumers within an ecosystem. 6. Did you know? A plant uses mostly the red and blue parts of visible light. The green light waves are not used… that’s why plants appear to be green to the human eye! Plants have other chemicals and pigments, too. In autumn, many plants stop producing chlorophyll. This allows you to see the other pigments, which is why leaves change color Q1. Explain how why plants are known as producers in an ecosystem. Use details from the lesson in explaining your answer. Plants are producers because they go through photosynthesis. When they do that, they make glucose (sugars) that provide energy to the consumers (animals) in an ecosystem. Q2. What single-celled things would be producers in an ocean or lake? diatoms, algae, blue-green bacteria