Which of the following is correct with respect to Facilitated Diffusion? 

  1. Some channels are always open while others can be controlled 
  2. All channels are always open 
  3. Some channels are closed while others are always open 
  4. No regulation of channels as such. 

11.1 Means of Transport

11.1.2 Facilitated Diffusion

Page number-177

Transport in Plants

Difficulty Level:

  • 60%
  • 13%
  • 16%
  • 12%