instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Toxins is contained in the skin of brightly colored poison dart frogs.
answer:
What is contained in the skin of brightly colored poison dart frogs?

question:
Phospholipids are vesicles made of.
answer:
What are vesicles made of?

question:
Carbon atoms are bonded to as many hydrogen atoms as possible in saturated fatty acids.
answer:
Carbon atoms are bonded to as many hydrogen atoms as possible in what type of fatty acids?