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

[Q]: Tight junction is the term for a watertight seal between two adjacent animal cells.
[A]: What is the term for a watertight seal between two adjacent animal cells?


[Q]: A electron microscope is used to see extremely small objects.
[A]: What type of microscope is used to see extremely small objects?


[Q]: Oxygen element do plants use to store energy as atp.
[A]:
What element do plants use to store energy as atp?