PNB Exam 3 questions with complete solutions passed

PNB Exam 3 questions with complete
solutions passed

What will each of the following do to smooth muscle contraction in the digestive system?



1.) Opening a calcium channel

2.) Increasing MLCK activity

3.) Increasing MLCP activity

4.) Stimulating a GPCR coupled to Gi

5.) Inhibiting a GPCR coupled to Gs

6.) Inhibiting a phosphodiesterase - ANS ✔✔1.) Increase

2.) Increase

3.) Decrease

4.) Increase

5.) Increase

6.) Decrease



Hyponatremia is a condition characterized by low extracellular sodium. This could potentially
affect the digestive system by: - ANS ✔✔Decreasing glucose absorption



Match the following integral membrane proteins with their appropriate location inside a
parietal cell:



1.) K Channel

2.) Cl Channel