TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Collision frequency is greater for homogeneous category of catalysts, which also tend to be more sensitive to temperature and more 'expensive'.

SOLUTION: Collision frequency is greater for what category of catalysts, which also tend to be more sensitive to temperature and more 'expensive'?

PROBLEM: The mitochondria organelles are known as the "power plants" of the cell.

SOLUTION: What organelles are known as the "power plants" of the cell?

PROBLEM: The right atrium of the human heart pumps the blood to the right ventricle.

SOLUTION:
Which area of the human heart pumps the blood to the right ventricle?