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PROTEINS (ELEMENTS (HYDROGEN, OXYGEN, CARBON, NITROGEN, SULFUR), BIURET…
PROTEINS
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FUNCTIONS :
OF PROTEINS
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SYNTHESIS OF NEW PROTOPLASM, FOR GROWTH AND REPAIR OF WORN-OUT CELLS.
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PROTEINS ARE ALWAYS PRESENT IN PROTOPLASM. THEIR MOLECULES ARE THE LARGEST AND MOST COMPLICATED OF ALL FOOD SUBSTANCE.
AMINO ACIDS ARE THE BUILDING BLCOKS OF PROTEINS , EVERY PROTEIN MOLECULE IS BUILT UP FROM SIMPLER COMPOUNDS KNOWN AS AMINO ACIDS
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PROTEINS MOLECULES ARE TOO LARGE TO PASS THROUGH LIVING CELL MEMBRANES. THESE PROTEIN MOLECULES MUST BE BROKEN DOWN BY ENZYMES DURING DIGESTION.