What happens when fresh grapes are kept in concentrated sugar solution ?

Answer

### Step-by-Step Solution:

1. **Understanding the Setup**: Fresh grapes are placed in a concentrated sugar solution. This creates a scenario where there is a difference in concentration between the inside of the grapes and the sugar solution outside.

2. **Concept of Osmosis**: Osmosis is the movement of water across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration. In this case, the sugar solution has a higher concentration of solutes compared to the inside of the grapes.

3. **Process of Exoosmosis**: When grapes are placed in the concentrated sugar solution, water inside the grapes moves out into the sugar solution. This process is specifically called exoosmosis, where the water exits the cells of the grapes.

4. **Result of Exoosmosis**: As water leaves the grapes, the cells lose their turgor pressure, leading to a shrinkage of the grapes. This is why you will observe that the fresh grapes become smaller or shriveled when kept in a concentrated sugar solution.

5. **Conclusion**: The overall effect of placing fresh grapes in a concentrated sugar solution is that they shrink due to the loss of water from the cells through the process of exoosmosis.