Why is fructose more water-soluble than glucose?
Fructose dissolves better in water than glucose. I've always understood that the more OH groups a molecule has, the more water-soluble it is because it forms hydrogen bonds with water. But fructose and glucose both have five OH groups…
The interaction between sugar and water is one thing. The interaction between sugar molecules is another.
Fructose does not form crystals so easily. I’ve read that it’s almost impossible to grow fructose crystals, and you only get an ever more viscous syrup.
How so often you have to look at both sides of a reaction.
I don’t know. If someone asked me to answer this question, I would write, so that the sperms get enough food. (Sperms have an obligated fructose metabolism as the only cells in the human body)