Question Detail

MIC 121 MIC 121 Test compilation 2 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 ingredients like yeast extract or peptones, whose exact chemical composition is unknown. This makes them rich in various nutrients and growth factors, making them ideal for cultivating a wide range of microorganisms, especially fastidious ones that have complex nutritional requirements and cannot be easily grown on chemically defined media.

Hint

Consider the 'unknown' nature of undefined media and how that might be beneficial for diverse or finicky microbes.

Question Info

Course: MIC 121
Topic: MIC 121 Test compilation 2
Type: Objective
Difficulty: Not specified
Question 295 of 984
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