question_answer

Choose the total number of correct statements from the following:

(A) Some channels in the membrane are always open

(B) Porins allow the passing of molecule of size up to small protein.

(C) Water channel made up of eight different type of aquaporins.

(D) Facilitated diffusion is very specific.

A)  1                                

B)  2                    

C)    3                    

D)    4