PLEASE HELP I WANNA GRADUATE As the iodine solution dissolves in the water , the red orange color of the iodine is observed throughout water in the beaker . After 10 minutes , tje white starch solution turns black , the iodine solution remains red orange .
How do the results of the investigation relate to tje transport og molecules through the cell membrane ?
a. Membrane proteins allow large molecules to pass through the cell membranes. The holes in the dialysis tubing allowed the starch solution to move outside of the tube to react with iodine.
b. Protein pumps within the cell membrane actively increase the concentration of chemicals in the cell. The dialysis tubing increased the concentration of iodine inside of the tube.
c. Diffusion of small molecules occurs through semipermeable cell membranes. The iodine solution passed through the dialysis tubing, but the starch solution remained inside the tubing.
d. A cell membrane will actively transport needed molecules into the cell. The dialysis tubing actively transported the iodine inside the tubing to react with the starch.