Tracey explains to Max that his transiently elevated blood glucose leads to ""spilling"" of glucose into his urine. Why does this happen
a. Tubule cells inhibit glucose production when blood levels are elevated.
b. The tubule cells actively secrete excess glucose into the filtrate. (INCORRECT)
c. Reabsorption of glucose is limited by transport proteins.
d. The tubule cells are unable to reabsorb any glucose that enters the filtrate.