- A new substance glycogen is produced in the conversion
- Chemical reactions cause new substances to form
- So, a chemical reaction causes the new substance glycogen to form in the conversion

So, a chemical reaction causes the new substance glycogen to form in the conversion
[Question]The liver converts glucose to glycogen for storage. Why is this function considered a chemical change?
[Context]- A new substance glycogen is produced in the conversion 
- Chemical reactions cause new substances to form