List the several “mechanisms” you have explored that change the GFR.

Can someone please help me with the following questions, I am struggling to come up with the answers.

Activity 3

19.   List the several “mechanisms” you have explored that change the GFR.  How does each of them specifically alter the GFR?
20.   Describe and explain what happened to the glomerular capillary pressure and GFR when both arteriole radii changes were implemented simultaneously with the low blood pressure condition.
21.   Which arteriole radius adjustment was more effective at compensating for the effect of low blood pressure on the GFR?

Activity 4

31.   Is most of the tubule filtrate reabsorbed into the blood stream (the body) or excreted in urine?  Explain.


Activity 5

42.   A person with type 1 diabetes cannot make insulin in the pancreas; a person with type 2 diabetes does not respond normally to the insulin that is made in the pancreas.  In either case, why (or when) would you expect to find glucose in the person’s urine?


Help please will help with other activities if i have the answers.