You will be given a definition of a task first, then some input of the task.
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Cell term is used to describe a collection of molecules surrounded by a phospholipid bilayer that is capable of reproducing itself.
Output:
What term is used to describe a collection of molecules surrounded by a phospholipid bilayer that is capable of reproducing itself?