What happens to the fructose diphosphate in the 4th step? How many G-3-P molecules are formed?

Fructose, sucrose, and starch are all examples of carbohydrates. There are two classifications of carbohydrates and those are simple carbohydrates and complex carbohydrates. The simple carbohydrates are generally sugars like fructose and sucrose whereas starch would be classified as a complex carbohydrate.