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For the best answers, search on this site https://shorturl.im/avZYN. Oh, no..they don't. Chloroplasts must not be mixed up with chlorophyll, the chemical they contain. Chloroplasts are merely the organelles in green plants that contain chlorophyll on their membranes. It is the chlorophyll that uses light energy to run the electron transport chain that eventually results in the formation of glucose in photosynthesis. Strictly speaking, chloroplasts are just organelles that hold chlorophyll and provide the membranes on which photosynthesis is done.
They may be chloroplasts, chromoplasts, and leucoplasts. A chloroplast is a plastid that contains high amounts of green pigment, chlorophyll. The chlorophyll pigments may be chlorophyll a, chlorophyll b, chlorophyll c, chlorophyll d, and chrlorophyll f. Chlorophyll a is present in all chloroplasts. Other pigments that may be present (particularly in algal cells) are carotenoids and phycobilins. The chloroplast has at least three membrane systems: outer membrane, inner membrane, and thylakoid system. The thylakoids are disk-shaped structures that function as the site of photosynthesis. It is because embedded in the thylakoid membrane is the antenna complex consisting of proteins, and light-absorbing pigments, including chlorophyll (the green pigment) and carotenoids.