Which of the following statements regarding auxin transport in plant cells is not correct ?
1
IAA is taken up by cells in its protonated form by passive diffusion and in anionic form by the activity of influx carriers
2
1-NAA, being lipophilic, enters the cells mainly by diffusion
3
2,4-D accumulates in cells since it is taken up by passive diffusion and not secreted by the efflux carrier
4
2-NAA is biologically inactive as auxin and does not enter the transport system
5
Question Not Attempted