attaching sugars to protein molecules building larger molecules from sugars creating simple sugars from smaller molecules breaking down complex carbohydrates into simple sugars
I gave my students this multiple choice question: Sugars are necessary for human cell function. Which of the following are human cells not capable of doing?

Only one answer is correct among these 4 choices:
- attaching sugars to protein molecules
- building larger molecules from sugars
- creating simple sugars from smaller molecules
- breaking down complex carbohydrates into simple sugars

Could you tell me which one is correct?

creating simple sugars from smaller molecules