Types of plastid - QS Study
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The living organelle, distributed in the cytoplasm, may be pigmented or non-pigmented, which can only be found in plant cell is called plastid.

Types of plastid: Plastid mainly, is of two types, such as-

1) Leucoplastid and 2) Chromoplastid

(1) Leucoplastid: The cells of the particular area of the plant both that arc deprived of sun light contain Ieucoplastid. They are colorless plastid (non-pigmented)

Leucoplastid is of three types:

  • Amyloplast: It stores carbohydrate.
  • Elioplast: It stores lipid.
  • Aleuroplast or proteinoplast: It stores protein.

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(2) Chromatoplastid: The colored plastids (pigmented) are said to be chromatoplastids.

On the basis of the presence of different pigments chromatoplastid is of two types:

a) Chromoplast

b) Chloroplast

  • Chromoplast: The chromatoplastid that creates different colors other than green color is called chromoplast, such as- Petals of flower, colored seeds and fruits, modified root of carrot etc.
  • Chloroplast: The green parts of plants, such as- leaf tender branches, green fruits etc that contain color producing plastids are (red-carotin, yellow- zanthophyll) called chloroplast.