Asu Bio 181 Exam 3 (13-16). Questions And Answers, Rated A+. Verified.

The excretory system uses oxygen because oxygen diffuses more rapidly into the excretory system because it contains water in the urine. {Ans: False}The collecting duct of the kidney drains into the _______________ and this enters the _______________ _______________. {Ans: ureter, urinary bladder}Fast neurons as described in lecture are fast because they are surrounded by a type of glial cell that results in a myelin coating. {Ans: False}The slow flow of blood in the capillaries facilitates release of oxygen. {Ans: True}Explain how insulin and glucagon regulate the balance (i.e, homeostasis) between glycogen and glucose when epinephrine (i.e., adrenalin) is not involved. {Ans: - blood glucose rises -> b-cells of pancreas release insulin -> insulin stimulates cells to use glucose and convert glucose to glycogen and fat - blood glucose falls -> pancreas stops releasing insulin -> cells use glycogen and fat for energy - blood glucose falls too low -> a-cells release glucagon -> glucagon stimulates liver to convert glycogen back to glucose}The inter-weaving of the circulatory system with the nephron is essential for the concentration of urea in the urine. {Ans: True}When you inhale which set of muscles uses the least amount of ATP