The incorrect statement for facilitated diffusion is:

1. Special proteins help move substances across membranes without the expenditure of energy.

2. Can cause net transport of molecules from a low to a high concentration.

3. It is very specific, it allows cells to select substances for uptake.

4. Transport rate reaches a maximum when all of the protein transporters are being used.

Select the incorrect statement regarding facilitated diffusion:-

1.  It is a very specific process

2.  It is a passive process

3.  It helps the hydrophilic substances to be transported across the membrane 

4.  It is faster than active process

Water channels are made up of 

1. Eight aquaporins 

2. Eight different types of aquaporins 

3 .Ten aquaporins 

4. Ten different types of aquaporins