Answer to Question 1
Sulfate
Answer to Question 2
Carries nutrients and waste products throughout the body
Maintains the structure of large molecules such as proteins and glycogen
Participates in metabolic reactions
Serves as the solvent for minerals, vitamins, amino acids, glucose, and many other small molecules so that they can participate in metabolic activities
Acts as a lubricant and cushion around joints and inside the eyes, the spinal cord, and, in pregnancy, the amniotic sac surrounding the fetus in the womb
Aids in the regulation of normal body temperature, as the evaporation of sweat from the skin removes excess heat from the body
Maintains blood volume