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Chloroplast
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. 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.
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