what are the types of plastids
Answers
Answer:
What are Plastids?
Plastids are double-membrane organelles 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.
Types of Plastids
There are different types of plastids with their specialized functions. Among them, a few are mainly classified based on the presence or absence of the Biological pigments and their stages of development.
- Chloroplasts
- Chromoplasts
- Gerontoplasts
- Leucoplasts
Inheritance of Plastids
There are many plants which are inherited from the plastids from just a single parent. Angiosperms inherit plastids from the female gamete while there are many gymnosperms that inherit plastids from the male pollen. Algae inherit plastids from one parent only. The inheritance of the plastids-DNA seems to be 100% uniparental. In hybridization, the inheritance of plastid seems to be more erratic.
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There are three types of plastids.
Explanation:
plastids : plastids are bounded by a double membrane. They occur in plant cells only . The organisms of plastids contain numerous membrane layered structure embedded in a material called "the stroma ".
In the stroma there are stocks called grana . Each granum contains photosynthetic apparatus. Plastids are of 3 types : -
- Leucoplasts - They are colourless and store food in the form of starch, proteins and fats .
- Chromoplasts - They are variously coloured like red , orange, yellow etc except green.
- Chloroplasts - They are green coloured plastids because of the presence of chlorophyll. They trap the solar energy and perform the function of photosynthesis.