BI-579
Diffusion
Biology · Secondary 3 · Easy · Diffusion
A dialysis tubing bag filled with red dye solution is placed in a beaker of clear water. After one hour, the water in the beaker becomes pink. Which process mainly caused this colour change?
- Dye molecules move through the membrane by diffusion.
- Dye molecules move through the membrane by osmosis.
- Water molecules move into the bag by diffusion.
- Water molecules move into the bag by osmosis.
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