Glucose

Analysis of D-Glucose Cyclization and Pyranose Forms:

Sugar [X] is D-glucose, which can cyclize to form a six-membered pyranose ring. The structure depends on the orientation of the -OH group on the anomeric carbon (C-1):

• Diagram 1: The -OH group on the anomeric carbon (C-1) is oriented downward, representing the α-D-glucopyranose form.
• Diagram 2: The -OH group on the anomeric carbon (C-1) is oriented upward, representing the β-D-glucopyranose form.
• Diagram 3: Shows the addition of HO with the group oriented downward.
• Diagram 4: Shows the addition of CH₂ with the group oriented downward.

Conclusion: Since the question asks for the β-D-glucopyranose form, Diagram 1 is the correct representation.

The question involves osmosis, where water will move in or out of the cell based on the concentration of solute in the surrounding solution. The solution with the same concentration of glucose (0.9% ) inside and outside the cell will have the same osmotic potential, meaning there will be no net movement of water into or out of the cell.
Hence, the cell will show no change in volume, as the concentration of glucose inside and outside is equal.