Its sugar that is preferentially uptaken by the liver. That means its not very good for fueling your hungry muscles. Glucose a.k.a Dextrose is good at that.
Other than that: carbs are carbs. You body doesn't care if you eat one sugar or another... you can eat glucose (dextrose), or maltodextrin (long chains of glucose... "more complex,"), or white bread and it will be exactly the same to your body.
Carbs are carbs are carbs. The only thing that determines the insulin repsonse to alot of carbs is the AMOUNT EATEN. Period. Outside of a couple minutes, its all the same and doesn't matter to you unless you're in hypoglycemic shock.
What matters is what you eat with them: fiber, protein, fat, will all affect how fast the carbs are uptaken, and more importantly how long you remain full. Whole wheat pasta will keep you fuller longer than white pasta, etc.