Question Detail

MIC 121 Mcb compilations Objective Question
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Question

What distinguishes a defined medium from an undefined medium?
Options
A Defined medium has known quantities of all ingredients
Correct Answer
B Undefined medium is only used for eukaryotic cells
C Defined medium is more expensive than undefined medium
D Defined medium contains complex ingredients like yeast extract
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. Undefined (or complex) media, in contrast, contain components like yeast extract or peptone, whose precise chemical composition is not known (making option D incorrect for a defined medium). Defined media are often more expensive but not always (option C).

Hint

Focus on the literal meaning of 'defined' in the context of a chemical composition.

Question Info

Course: MIC 121
Topic: Mcb compilations
Type: Objective
Difficulty: Not specified
Question 833 of 984
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