Today we will talk about the Structures and Functions of Mitochondria and Plastid. Mitochondria: (a Transducer)
1. Double layered membrane under electron microscope
2. Inner wall is thrown into finger like projection called cristae.
3. It is rod shaped.
4. The space between two membrane is called perimitochondrial
space.
5. On the cristae there are tennis racket like structures are present
called F1 particle.
6. The floor of mitochondria is called matrix.
7. It is called power house of a cell
Function: It is also known as power house of the cell, which libarates energy by the cellular respiration
through the production of ATP molecule.
Plastid: (a Transducer)
There are three types of plastids
1. Chloroplastid: Double layered under electron microscope
It contains thylakoids, within it there is quantasomes, within it there are chlorophyll
Present in leaves
Green in colour due to presence of chlorophyll
Helps in photosynthesis
2. Chromoplastid: Double layered membrane under electron
microscope
It contains membranous tubes instead of thylakoid
Present in flowers
It is yellow and orange in colour due to Xanthophyll and
Carotein.
Helps to give different colours to the flower.
3. Leucoplastid: Double layered membrane under electron
microscope
Spherical in shape
It is colourless present in roots.
It helps to store food materials.
Functions
1.Chloroplastid: Present in leaves. Helps in photosynthesis
2.Chromoplastid: Present in flowers. Helps in pollination
3.Leucoplastid: Present in roots. Helps to store food
Plastid is also known as kitchen of the cell.
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Tag: Tags: Structures and Functions of Mitochondria and Plastid class 8 biology Science Reckoner; mitochondria, mitochondrion, mitochondria function, function of mitochondria, what do mitochondria do, cell biology; plastids, frame plastids, how to get plastids; Biology CBSE Class 8, Biology CBSE Class 9
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