Question Detail

MIC 121 MIC 121 Test compilation 5 Objective Question
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Question

What distinguishes a defined medium from an undefined medium?
Options
A A defined medium has known quantities of all its ingredients.
Correct Answer
B An undefined medium is only used for eukaryotic cells.
C A defined medium contains complex ingredients like yeast extract.
D An undefined medium cannot support microbial growth.
Correct Answer

Option A is the correct answer.

Detailed Explanation

A defined (or synthetic) medium is one in which the exact chemical composition and quantity of every ingredient are known. In contrast, an undefined (or complex) medium contains ingredients like yeast extract or peptones, whose precise chemical composition is not fully known.

Hint

The key difference lies in the level of chemical specificity and exactness of the components.

Question Info

Course: MIC 121
Topic: MIC 121 Test compilation 5
Type: Objective
Difficulty: Not specified
Question 347 of 984
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