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Chloroplasts: Because Every Plant Needs a Little Sun
Chloroplasts are organelles found in plant cells that help conduct photosynthesis. They absorb light and combine the stored light with water and carbon dioxide to produce sugars. Chloroplasts move freely around the cell with mitochondria and other organelles in the cell's cytoskeleton. Three important parts include the thylakoids, granum, and stroma.
Thylakoids are flattened sacs that are stacked on top of each other within the chlorplast. These structures convert light energy into chemical energy.
The individual flattened sac in the thylakoid is the granum. The granum functions in light reactions during photosynthesis.
Stroma is the fluid outside the thylakoids. It contains chloroplast DNA, ribosomes, and enzymes. It is also involved in the synthesis of organic molecules from carbon dioxide and water.
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