A dish contains agar jelly with starch. Four holes are made in the jelly, and each one is filled as shown in the diagram. After $30\,\text{minutes}$, which hole will be enclosed by the greatest starch-free area?
- AA
- BB
- CC
- DD
Biology 5090 · O Level · Enzyme action
A dish contains agar jelly with starch. Four holes are made in the jelly, and each one is filled as shown in the diagram. After $30\,\text{minutes}$, which hole will be enclosed by the greatest starch-free area?