Correct Answer: D
Solution :[d] In photosynthetic, bacteria, small particles of 60m diameter, called chromatophores, are present. These are attached to the inner surface of cell membrane, have no limiting membrane and possess bacterio chlorophyll. Plastids are of three types, on the basis of their colour.
|(1) Chromoplasts: Coloured plastids except green, give different type of colour appearance to different parts of the plant.|
|(2) Chloroplasts: Green plastids take part in the process of photosynthesis|
|(3) Leucoplasts: Colourless plastids, mainly function as store house of various types of food.|
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