Complex sentence: Gustav Georg Embden (November 10,1874--July 25,1933) was a German chemist who conducted studies on carbohydrate metabolism and muscle contraction, and was the first to discover and link together all the steps involved in the conversion of glycogen to lactic acid.
Split into simpler sentences: Gustav Georg Embden (November 10,1874--July 25,1933) was a German chemist. He conducted studies on carbohydrate metabolism and muscle contraction, and was the first to discover and link together all the steps involved in the conversion of glycogen to lactic acid.