A dish contains agar jelly mixed with starch. Four holes are made in the jelly, and each hole is filled as shown. After $30$ minutes, which hole will be surrounded by the largest area free of starch?
- AA
- BB
- CC
- DD
Biology 5090 · O Level · Enzyme action
A dish contains agar jelly mixed with starch. Four holes are made in the jelly, and each hole is filled as shown. After $30$ minutes, which hole will be surrounded by the largest area free of starch?