Answer:
idk if this is what you're asking for, but water molecules are polar, so they form hydrogen bonds. This gives water properties such as a relatively high boiling point, high specific heat, cohesion, adhesion and density.
I think they speed up reactions :P
Oxygen and glucose are need for cellular respiration
Answer:
a pigment metabolite from the destruction of hemoglobin
Explanation:
Bilirubin is a yellow pigment produced during the normal breakdown of hemoglobin as red blood cells die.