Question 1
1 pts
An example of a compound that, under normal conditions (i.e., not elevated concentrations) shows
net reabsorption, would include:
• Glucose
O Urea
O Penicillin
O Hydrogen ions
Question 2
1 pts
One treatment for high blood pressure is to give someone a diuretic. This works by blocking
epithelial sodium channel (ENaC) in the proximal tubule and distal tubule. How would this lower
someone's blood pressure?
O Most reabsorption is driven first by sodium reabsorption, so block that, and block most other things, including
water, from being reabsorbed, which would lower fluid volume (and pressure) in the blood vessels
O By inhibiting sodium reabsorption, this would lead to more sodium in the blood, and less fluid retention
Not allowing sodium reabsorption would lead to low sodium in the blood, which would draw in excess
potassium, thereby drawing more water in the blood vessels
O None of these answers are true
Question 3
1 pts
John needed his kidneys checked and was injected with inulin at a concentration of 0.01. His urine
concentration and volume rate afterwards were 1.2 mg/ml and 0.900 ml/min respectively. His GFR
is
155,500 L/day
O 155.5 ml/day
O 155.5 L/day
O Above the normal rate
