Question Detail

MIC 121 Mcb compilations Objective Question
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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 media (also known as complex media) contain extracts and digests of yeasts, meat, or plants, the exact chemical composition of which is not precisely known. This complex mix provides a rich array of nutrients, vitamins, and growth factors, making them suitable for growing a wider range of microorganisms, especially those with complex nutritional requirements that may not grow on defined media.

Hint

Consider the composition of an undefined medium and how its 'unknown' components might benefit microbial growth, especially for picky organisms.

Question Info

Course: MIC 121
Topic: Mcb compilations
Type: Objective
Difficulty: Not specified
Question 798 of 984
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