Need help with what a cell is like or not like and what metabolism is like or not like. Am only allowed to use one word.

You cannot use just one word to describe both what it is like and what it is not like.

Cell - box

metabolism - burning

Sure! I can help answer your questions using single words. Here is a comparison between a cell and metabolism:

Cell:

Like → Microscopic
Not like → Multicellular

Metabolism:

Like → Energy
Not like → Inanimate

Please let me know if you need further clarification or if you have any other questions.