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

Input: Consider Input: Plasma matter makes up most of the universe.

Output: What type of matter makes up most of the universe?


Input: Consider Input: The active transport of ions across the membrane causes an electrical gradient to build up across the plasma membrane.

Output: The active transport of ions across the membrane causes an electrical gradient to build up across the what?


Input: Consider Input: Plantar reflex is commonly tested in newborn infants to establish the presence of neuromuscular function.


Output: What reflex is commonly tested in newborn infants to establish the presence of neuromuscular function?