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Q.
Cellular respiration occurs in:
Jharkhand CECEJharkhand CECE 2005
Solution:
Mitochondria are the seat for cellular respiration and produce energy in the form of ATP or (cellular currency), utilized for cellular functions. The respiratory assemblies known as oxysomes or $ F_1$ particles are located in the inner membrane of mitochondria. These particles contains a ATPase enzyme involved in oxidative-phosphbrylation. Due to production of energy, mitochondria are also called, 'Power houses' of the cell. Chloroplast are the important and common plastids found in all photosynthesizing cell except prokaryotes. It is composed of proteins $(35-55\%)$, lipids $(20-30\%)$, chlorophylls $(9\%)$, carbohydrates $(3-7\%)$, carotenoids $(4-5\%)$, RNA and DNA. Chloroplast has no role in respiration. Golgi bodies also known as lipochondrion is composed of $60\%$ protein and $40\%$ lipids and polysaccharides. It functions in transportation and secretion of certain materials like proteins and polysaccharides. It stores the secretory products, give rise to lysosomes, vacuoles and in formation of acrosome in sperm. Unlike mitochondria, Golgi bodies don't have any respiratory structures or enzymes. Nucleus is the largest organelle which regulates growth and reproduction of cell or the controller of all the activities of cell.