A learner filled a beaker until it was half full with solution X. A sealed Visking tubing bag that contained solution Y was then put into the beaker. After 30 minutes, the liquid in the beaker was orange and the liquid inside the Visking tubing was blue-black. What substances were present in solutions X and Y at the beginning to produce these results?
- Asolution X: starch; solution Y: amylase and iodine
- Bsolution X: iodine; solution Y: amylase
- Csolution X: starch and amylase; solution Y: iodine
- Dsolution X: iodine; solution Y: starch