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The function of chloroplast is to convert light energy into chemical energy. Chloroplast is an organelle found in some plant cells and certain unicellular organisms. This is where photosynthesis, the process by which plant use the sun's energy to convert water and carbon dioxide to sugar takes place. The function of the chloroplast for the plants is that it changes energy from the sun into sugar for the plant to use as food. Chloroplasts are membrane-bound plastids containing chlorophyll, thylakoids, grana, and their own set of DNA molecules dispersed in the stroma. Each component of a chloroplast has a unique role in photosynthesis and photorespiration.


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Chloroplasts are organelles that enable plants and certain algae to convert solar energy to chemical energy. They are lens shaped organelles. They give color to the particular cell. For example, plant leaves have green colored chloroplasts, and thus they get a green color. Tomatoes have red colored chloroplasts, giving them a red color. Chloroplasts are found in plant cells. Cell walls allow plants to have rigid structures as varied as wood trunks and leaves and vacuoles allow plant cells to change sides.

Information derived from Buzzle.