what are types of plastids? Explain its function?
Answers
Answer:
Plastids are double-membrane organelle which are found in the cells of plants and algae. Plastids are responsible for manufacturing and storing of food. These often contain pigments that are used in photosynthesis and different types of pigments that can change the colour of the cell.
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Chloroplasts
Chloroplasts are biconvex shaped, semi-porous, double membraned, permeable cell organelle found within the mesophyll of the plant cell. They are the sites for synthesis food by the process of photosynthesis.
Main Article: Chloroplasts
Chromoplasts
Chromoplasts is the name given to an area for all the pigments to be kept and synthesized in the plant. These can be usually found in flowering plants, ageing leaves and fruits. Chloroplasts convert into chromoplasts. Chromoplasts are carotenoid pigments that allow different colours that you see in leaves and fruits. The main reason for its structure and the colour for attracting pollinators.
Gerontoplasts
These are basically chloroplasts that go with the ageing process. Geronoplasts refers to the chloroplasts of the leaves that helps the beginning to convert into different other organelles when the leaf is no longer using photosynthesis usually in an autumn month.
Leucoplasts
These are the non-pigmented organelles which are colourless. Leucoplasts are usually found in most of the non-photosynthetic parts of the plant like roots. They act as a storage sheds for starches, lipids, and proteins depending on the needs of the plants. They are mostly used for converting amino acids and fatty acids.