Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[EX Q]: Question: Organelles whose membranes are specialized for aerobic respiration are called what? Answer: mitochondria
[EX A]: Mitochondria are organelles whose membranes are specialized for aerobic respiration.

[EX Q]: Question: What is the part of the shadow that is partially lit called? Answer: penumbra
[EX A]: The penumbra is the part of the shadow that is partially lit.

[EX Q]: Question: Unlike the passive form, the sodium-potassium pump uses what type of transport? Answer: active
[EX A]:
Mariana Ruiz Villarreal (User:LadyofHats/Wikimedia Commons), modified by Hana Zavadska. The sodium-potassium pump uses active transport . Public Domain.