Plastids are recognized as Kitchen of the cell. Plastids are double-membrane organelles which are found in the cells of plants and algae. Plastids are responsible for manufacturing and storing food. These often contain pigments that are used in photosynthesis and different types of pigments that can change the colour of the cell.
With their specialized roles, there are various kinds of plastids here. Some of them are primarily categorized on the basis of the presence or absence of biological pigments and their growth phases.
Chloroplasts – Chloroplasts are semi-porous, double membraned, biconvex shaped cell organelles located within the mesophyll of the plant cell. They are the sites where food is synthesized by photosynthesis.
Chromoplasts – The name given to a region for all the pigments in the plant to be kept and synthesized is Chromoplasts. These can typically be found in flowering plants, leaves and fruits that are aged. Chloroplasts convert into chromoplasts.
Gerontoplasts – Basically, these are chloroplasts that go with the ageing phase. Geronoplasts correspond to leaf chloroplasts that help convert to various other organelles when photosynthesis is no longer used by the leaf, typically in the autumn month.
Leucoplasts – These are colourless, non-pigmented organelles. In most non-photosynthetic sections of the plant, leucoplasts are typically found as roots. Based on the plant’s needs, they serve as a storage shed for starches, lipids and proteins. They are primarily used to convert fatty acids and amino acids.