CLASS IX NCERT SCIENCE Chapter 5 Fundamental Unit of Life : Cell
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Plastids Plastids are present only in plant cells. The plastids also have their own genome (i.e., DNA) and ribosomes. They are self-replicating organelles like the mitochondria, i.e., they have the power to divide.
Types of plastids chromoplasts-colored plastids (except green color) chloroplasts-Green-colored plastids. Leu coplasts-The colorless plastids.
Types of plastid Chromoplast Chloroplast Leukoplast
Leucoplasts Chromoplasts 1. They are colorless. 1. They range from brownish to reddish in color. 2. They are cylindrical or rounded in 2.They are irregular in shape. in shape. 3. They take part in storage of food, 3. They provide color to organs to e.g., amyloplasts, elaioplasts etc. attract pollinators and disseminators
Chloroplasts Chromoplasts 1. They are green plastids. 1. They are non green colored plastids. 2. They contain chlorophyll and 2. Chlorophyll absent and only carotenoids carotenoids present. 3. Site of photosynthesis. 3. Add color to organs for attracting animals to perform pollination
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