Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Seed -> young plant -> adult plant sequence shows the order of stages in a plant’s life cycle.
[A]: Which sequence shows the order of stages in a plant’s life cycle?


[Q]: Just as salty taste involves perception of sodium ions in saliva, sweet taste correlates with presence of glucose.
[A]: Just as salty taste involves perception of sodium ions in saliva, what taste correlates with presence of glucose?


[Q]: In a biological reaction, proteins act as catalysts.
[A]:
What role do proteins play in a biological reaction?