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प्रश्न
Answer the following question.
What are the types of plastids?
टीपा लिहा
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उत्तर
- Plastids are classified according to the pigments present in it. Three main types of plastids are leucoplasts, chromoplasts and chloroplasts.
- Leucoplasts do not contain any photosynthetic pigments they are of various shapes and sizes. These are meant for storage of nutrients:
a. Amyloplasts store starch.
b. Elaioplasts store oils.
c. Aleuroplasts store proteins. - Chromoplasts contain pigments like carotene and xanthophyll etc.
a. They impart yellow, orange or red colour to flowers and fruits.
b. These plastids are found in the coloured parts of flowers and fruits. - Chloroplasts are plastids containing green pigment chlorophyll along with other enzymes that help in production of sugar by photosynthesis. They are present in plants, algae and few protists like Euglena.
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Components of Eukaryotic Cell
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