Question

Presence of starch in leaves is confirmed by which test?

Answer 1

Iodine solution:

1. Glucose produced by plants is stored as starch which is a white, powdery substance.
2. The presence of starch in leaves shows that the leaves are undergoing the photosynthesis process.
3. Iodine testing is used to check the presence of starch in a leaf.
4. When leaves are dipped in an alcoholic solution, the green color of leaves becomes colorless.
5. When these leaves are treated with iodine, they retain a blue-black color due to the presence of starch with iodine as an indicator.