3 A seedling is placed, with its roots, in a solution containing potassium ions and lett for 48 hours.
The relative concentrations of the potassium ions are shown in the table
concentration of
potassium ions in
the solution
concentration of
potassium ions in
the root har
20
15
start of experiment
after 48 hours
18
35
How did the potassium ions enter the cell?
active
transport
diffusion
Osmosis
A
X
key
B
- yes
Xno
С
D
X