Question Detail
Question
Why might an undefined medium be chosen over a defined medium?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Undefined (or complex) media contain components whose exact chemical composition is not known, such as yeast extract or peptone. These ingredients provide a rich array of nutrients that can support the growth of a wide variety of microorganisms, especially those with complex nutritional requirements that might not grow on simpler, defined media. Defined media (option D) offer precise control.
Hint
Consider the diverse nutritional needs of different microorganisms and the components of an undefined medium.