BI-617
Digestive enzymes
Biology · Secondary 3 · Hard · Digestive enzymes
A student tests four solutions with iodine solution.
I: starch + amylase at 37 °C for 30 min
II: starch + boiled amylase at 37 °C for 30 min
III: starch only at 37 °C for 30 min
IV: maltose + amylase at 37 °C for 30 min
Which tubes will give a blue-black colour with iodine?
I: starch + amylase at 37 °C for 30 min
II: starch + boiled amylase at 37 °C for 30 min
III: starch only at 37 °C for 30 min
IV: maltose + amylase at 37 °C for 30 min
Which tubes will give a blue-black colour with iodine?
- I only
- II only
- II and III only
- II, III and IV
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