It seems That teh molecules can move towards the membrane
Hi hope I can help, I think the answer isB
Answer:
Cabbage juice
Explanation:
Red cabbage has pH indicator pigment. It changes color when mixed with acid or basic solution.
For acidic solution, the juice turns red.
For neutral, it shows purple color.
For basic solution have pH 8-9 : Blue
pH 10-11: Green
For strong basic solutions: yellow in color.
This biomolecule would be used to store energy