Explain the structure of Chloroplast?
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Please find your answer below to the asked query :
Plastid which is green in colour is Chloroplast. It is involved in photosynthesis.
Chloroplast
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Location: Mesophyll cells in leaves
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Can be variable in shape (oval/spherical/discoid/ribbon-like), in length and in number (1 per cell in Chlamydomonas to 20−40 per cell in green algae)
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Have double membrane: Outer membrane and Inner membrane (less permeable)
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Stroma: Space enclosed by the inner membrane; contains enzymes required for carbohydrate and protein syntheses
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Thylakoids: Flattened, membrane-bound sacs present in the stroma; contains chlorophyll pigment
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Grana: Integrated thyllakoids; like piles of coins, where thyllakoids are arranged in stacks
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Stroma Lamella: Flat, membrane-bound tubules; connect thylakoids present in the different grana
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Lumen: Space present in thylakoid, i.e., the space enclosed by the thylakoid membrane
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Stroma of the chloroplast has small, circular DNA and ribosomes (70s).
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