Find an Online Tutor Now

Jasmine F.

asked • 03/15/15

Am I correct in my thinking about cyclic AMP?

I've been working on this for awhile, but I'm not sure if I'm really getting it. If a patient injects, into the venous system, a polar molecule that, when placed in a test-tube with isolated protein kinase A, completely inhibits the activity of protein kinase A predict the respiratory and cardiovascular effects.(physiologic effects)
I predicted the respiratory effects to be: bronchoconstriction and the cardiovascular system effects to be:lowered heart rate, decreased contractility, and vasodiltion.
I'm worried that because the molecule is polar, target cells can't respond to the molecule?(since beta receptors require epinephrine?) which is correct?
What if the molecule were polar cyclic AMP? Can receptors respond to that since its not epinephrine? I'm thinking it may not produce any effects at all. Someone set me straight on this.

2 Answers By Expert Tutors

By:

Christopher R. answered • 10/27/15

Tutor
New to Wyzant

Providing clarity and confidence to Physical/Life Science students

Naina B. answered • 03/16/15

Tutor
4.8 (155)

Naina, a versatile tutor

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.