for his work on ribonucleaseandfor their contribution to the understanding of the connection between chemical structure and catalytic activity of the ribonuclease molecule
for their elucidation of the enzymatic mechanism underlying the synthesis of adenosine triphosphateandfor his discovery of an ion-transporting enzyme, Na+, K+ -ATPase
... Brazil is by far the largest and most populous country in South America. Spanning a vast area between the Andes and the Atlantic Ocean, it borders Uruguay, Argentina, ...