What is the function of chloroplasts?


Quick Answer

The function of chloroplasts is to convert sunlight, water and carbon dioxide into food for the plant. Chloroplasts are energy organelles, and are present in all types of plants.

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What is the function of chloroplasts?
Credit: Dr. phil.nat Thomas Geier, Fachgebiet Botanik der Forschungsanstalt Geisenheim CC-BY-SA 3.0

Full Answer

Chloroplasts are present in most plant cells, but they are most common in the green, leafy areas. The organelles absorb sunlight through photosynthesis and use it with the water and carbon dioxide absorbed through other parts of the plant to create food for the plant to grow and survive. Chloroplasts are also found in algae and perform the same function by allowing the algae to continue to thrive.

Chloroplasts are also where chlorophyll is produced. Chlorophyll is a pigment that gives plants their green color, and it is the main receptor for sunlight within the organelle. The stroma is another part of the makeup of chloroplasts, and it is where carbon dioxide is changed into the sugar the plant needs to survive. The grana are where light energy is converted to chemical energy that the plant can consume and use. Chloroplasts are protected by a double membrane that keeps all of the internal structures contained and safe from the environment in the rest of the plant cell. Without chloroplasts, it would be impossible for plants to get the nutrients needed to function and grow.

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