the basic structural and functional unit is composed of many cell organelles, i.e.,
ER, Golgi apparatus, ribosomes, mitochondria, chloroplasts etc., each with a
specific function . Each of these organ cells are made up of various moleclules
such as proteins, lipids, enzymes, metallic ions like etc, which helps
in the functioning of cell organelles .
e.g.'., molecular constituents like proteins (60-70%), lipids (25-30%),
RNA (5-7%) DNA,ETS,
ATP syntheses', etc. found in mitochondria function together in a coordinated
way to carry out cellular respiration and release energy, thus making it power
house of cell.
Thus, the molecular constituents of a cell organelle,
forms the basis of its functioning irrespective of its individual molecular
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