Energy metabolism in the cell, its meaning and stages. Features of the structure of mitochondria in connection

Energy metabolism in the cell, its meaning and stages. Features of the structure of mitochondria in connection with the processes of oxygen breakdown.

Energy metabolism is a set of reactions of the splitting of compounds, which are accompanied by the release of energy and storage.
This exchange is also called dissimilation.
The following stages are distinguished:
1) PREPARATORY
Here complex organic substances are broken down into simple ones.
2) OXID-FREE OXIDATION or GLYCOLYSIS.
There is a breakdown of substances that were formed during the preparatory stage (breakdown of glucose). As a result, energy is released (breakdown in the form of heat).
3) OXYGEN OXIDATION (breath).
The breakdown of PVC (pyruvic acid) occurs in the mitochondria with the release of carbon dioxide (CO2) and water (H2O).
Meaning – energy is released that provides all cells with energy.
Mitochondria play a huge role, for example, the entire 3 stage of energy metabolism is carried out in this organoid, it is connected with the mitochondrial matrix and the inner membrane.



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