It's a question of how quickly the carbohydrates are absorbed and metabolised too Bags - the glycaemic index or GI value.
Glucose is 100 and the value of other carbohydrates is relative to that.
So if you have a bowl of 100g of brown rice, which is has a GI value of 55, or a banana, GI value 48, the sugars will be absorbed & digested only half as quickly as 100g of glucose.
But if you have a can of an energy drink containing 80 g sugar, as the worst ones do, that will be rapidly absorbed into your bloodstream and it's unlikely that your body will need that amount of energy at that time. The excess goes straight to your liver where it is stored as fat.
I agree with Daphne, fructose is the worst in this respect and that's why I stay away from fruit smoothies, have only 90 ml of orange juice a day and never eat anything with high fructose corn syrup in the ingredients.