The percentage of water inside a cell can vary depending on the type of cell and its specific conditions. However, a common estimate is that the cytoplasm, which is the intracellular fluid inside the cell, is composed of about 70-80% water.
When you mention "10% glucose" and "20% glucose," it seems like you might be referring to solutions with different concentrations of glucose. In a laboratory setting, solutions are often expressed as a percentage indicating the mass of solute (in this case, glucose) per unit volume of the solution. For example, a 10% glucose solution would mean that 10 grams of glucose is dissolved in 100 milliliters of solution.
If you are asking about the effect of different glucose concentrations on the water content inside a cell, it's important to note that cells typically maintain osmotic balance with their surroundings. If a cell is placed in a hypertonic solution (higher solute concentration outside the cell), water may move out of the cell, causing it to shrink. Conversely, if a cell is in a hypotonic solution (lower solute concentration outside the cell), water may move into the cell, causing it to swell. Maintaining osmotic balance is crucial for cell function and survival.