BI-1818
Digestive enzymes
Biology · Secondary 4 · Medium · Digestive enzymes
A solution of starch is mixed with amylase and kept at 37 °C. Samples are removed every 2 minutes and tested with iodine solution. The iodine colour changes from blue-black at 0 minutes to yellow-brown at 8 minutes. What does this show about the reaction?
- Starch concentration is highest at 8 minutes.
- All starch has been digested by 8 minutes.
- No enzyme activity occurs before 8 minutes.
- Starch is being formed from glucose.
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