Asked by jojo
What is the function of chloroplasts?
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Chloroplasts are the organelles in plant and algal cells that carry out photosynthesis. They capture light energy (using the pigment chlorophyll) and convert it into chemical energy by making ATP and NADPH in the thylakoid membranes (light-dependent reactions), then use that energy in the stroma to fix CO2 into sugars (Calvin cycle). A byproduct of the light reactions is oxygen. Chloroplasts also participate in synthesis of some lipids and amino acids and contain their own DNA, reflecting their origin from photosynthetic bacteria.
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