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Role of biomolecules in the human body

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  • They also serve as transporters, moving nutrients and other molecules in and out of cells, and as enzymes and catalysts for the vast majority of chemical reactions that take place in living organisms;
  • Lipids, another key biomolecule of living organisms, fulfill a variety of roles, including serving as a source of stored energy and acting as chemical messengers;
  • They also form membranes , which separate cells from their environments and compartmentalize the cell interior, giving rise to organelles , such as the nucleus and the mitochondrion , in higher more complex organisms;
  • DNA wraps around proteins called histones to form units known as nucleosomes;
  • Lipids, another key biomolecule of living organisms, fulfill a variety of roles, including serving as a source of stored energy and acting as chemical messengers;
  • These units condense into a chromatin fibre, which condenses further to form a chromosome.