Question

Which statement about aquaporins is false? A.They use Arg and His side chains to remove associated water molecules from the ‘transported’ H2O. B.They use hydrogen bonding to side chain NH2 groups of two Asn residues to exclude proton transport within the pore.C.They transport water and hydronium ions efficiently. D.They have a narrow constriction approximately equal to the van der Waals diameter of a water molecule.

Answer 1

Correct option - C

They transport water and hydronium ions efficiently

Step-by-step explanation:

Aquaporins selectively collect the water molecules in and out of the cell.

While preventing the passage of ions and other solutes it competely block the ions including protons and also important to conserve the electrochemical potential difference in the membrane.

Therefore, the following statement is false.

They transport water and hydronium ions efficiently