DrVirgo
Forum Hero
Topics: 1071
Posts: 3,413
|
22. Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) protein alter which of the following ion transport mechanisms?
A) Ca2+-activated Cl– secretion
B) Ca2+-activated Cl– uptake
C) Cyclic AMP (cAMP)-stimulated Cl– secretion
D) cAMP-stimulated Na+ secretion
E) cAMP-stimulated Na+ uptake
___________________
Our greatest glory is not in never falling, but in rising every time we fall.
|
| nadiabarati
|
B??
|
| mjl1717
Forum Hero
Topics: 955
Posts: 5,451
|
Id guess B also
___________________
Smell the coffee! "Is That an Osler move??"
|
| robin082006
Forum Hero
Topics: 471
Posts: 5,125
|
I go with C
___________________
The Key to Succeed is Patience.
|
| doc179
Forum Guru
Topics: 67
Posts: 1,217
|
C is the ans
|
| DrVirgo
Forum Hero
Topics: 1071
Posts: 3,413
|
anyone know the answer for sure? source?
___________________
Our greatest glory is not in never falling, but in rising every time we fall.
|
| sturge_weber
Forum Guru
Topics: 77
Posts: 1,042
|
ya i would also go for c...
|
| DrVirgo
Forum Hero
Topics: 1071
Posts: 3,413
|
Can you all please explain WHY you think B or C is right?
thanks. 
-Also, why is it NOT choice A?
___________________
Our greatest glory is not in never falling, but in rising every time we fall.
|
| doc179
Forum Guru
Topics: 67
Posts: 1,217
|
I did a search for the mechanism of the chloride channel function here ...the channel that is involved in cystic fibrosis acts via cAMP...I do not know how to explain this...
|
| DrVirgo
Forum Hero
Topics: 1071
Posts: 3,413
|
Oh, ok... So it it linked with G Protein S which stimulates cAMP?
___________________
Our greatest glory is not in never falling, but in rising every time we fall.
|
| doc179
Forum Guru
Topics: 67
Posts: 1,217
|
looks like that as it was not in much detail and I know only Gs which increases cAMP
|
| mangoshaikh
Forum Newbie
Topics: 3
Posts: 57
|
The answer is c.
i read this question in kaplan qbank i think
|
| guest007
Forum Senior
Topics: 11
Posts: 106
|
the answer is C.REFERENCE IS HARPER.
|
|
| |
| | | | | | | | | | | | | |
