Question Detail

MIC 121 Mcb compilations Objective Question
Take CBT

Question

Why might an undefined medium be chosen over a defined medium?
Options
A Because it is necessary for autotrophic organisms
B Because it is always less expensive than defined media
C Due to its ability to support microorganisms that cannot grow on defined media
Correct Answer
D Because it provides precise control over nutrient content
Correct Answer

Option C is the correct answer.

Detailed Explanation

Undefined (complex) media, which contain ingredients like yeast extract or peptones with unknown exact chemical compositions, are often chosen because they can support the growth of a wider range of microorganisms. These media often provide various growth factors and nutrients that might be difficult to synthesize or identify for specific fastidious organisms, making them suitable for cultivating microbes whose nutritional requirements are not precisely known.

Hint

Consider the content and versatility of complex media for diverse microbial populations.

Question Info

Course: MIC 121
Topic: Mcb compilations
Type: Objective
Difficulty: Not specified
Question 812 of 984
Previous Course Details Next