What do you know about peroxisomes?
Answers
Peroxisomes are small, membrane-enclosed cellular organelles containing oxidative enzymes that are involved in a variety of metabolic reactions, including several aspects of energy metabolism.
They are considered as an important type of microbody found in both plants and animal cells.
They were identified as organelles by Belgian cytologist Christian de Duve in 1967 after already been described.
First peroxisomes to be discovered were isolated from leaf homogenate of spinach.
They are most abundantly found in detoxifying organs such as the liver and kidney cells. However, they can be induced to proliferate in response to metabolic needs.They are membrane-bound spherical bodies of 0.2 to 1.5 μm in diameter found in all eukaryotic organisms including both plants and animal cells.
They are found floating freely in the cytoplasm in close association of ER, mitochondria or chloroplast within the cell.
They are among the simplest of eukaryotic organelles.
They exist either in the form of a network of interconnected tubules called peroxisome reticulum or as individual microperoxisomes.
They are variable in size and shape according to the cell and usually circular in cross-section.
They range from 0.2 -1.5 μm in diameter.
It consists of a single limiting membrane of lipid and protein molecules enclosing the granular matrix.
The matrix consists of fibrils or a crystalloid structure containing enzymes.
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Explanation:
a cell organelle containing catalase, peroxidase, and other oxidative enzymes and performing essential metabolic functions, as the decomposition of fatty acids and hydrogen peroxide