Plastids and Different Types of Plastids MCQ - Practice Questions with Answers

Plastids
Plastids are the semi-autonomous organelles that are the characteristic feature of plant cells. These are of following three types:

1. Leucoplasts: These are colourless plastids that are seen in the non-green plant cells. They do not possess grana and photosynthetic pigments. They primarily perform storage functions. Depending on the storage material, they are of three types:
(a) Amyloplasts: starch storing 
(b) Elaioplasts: fat or oil storing
(c) Aleuroplasts: protein storing

2. Chromoplasts: These contains carotenoids pigments and are red or yellow in colour. These are present in the coloured regions of the plants such as flowers, fruits etc.

3. Chloroplasts: These are green plastids primarily concerned with the process of photosynthesis.