
Concept explainers
Introduction:
Culture of microbes is performed under controlled temperature and other conditions to identify various types of microbes. A medium is required to provide proper nutrients to the cultured microbes.

Answer to Problem 1MCQ
Correct answer:
The term culture refers to the macroscopic growth of microorganisms in the media. Therefore, option (b) is correct.
Option (b) is given as “macroscopic, media”.
Explanation of Solution
Justify reasons for the correct statement:
The growth of bacteria can be seen on Petri plates in the form of patches, which are the colonies developed by the microbes. The growth of microbes takes place in the provided media, which contain a sufficient amount of nutrients required for the growth.
Hence, option (b) is correct.
Justify reasons for the incorrect statements:
Option (a) is given as “rapid, an incubator”.
The culture of microbes is done under controlled situations, so it cannot take place rapidly. An incubator is a device which is used to provide favorable temperature to the microbes. Hence, it is a wrong answer.
Option (c) is given as “microscopic, the body”.
The growth of microbes can be observed through the eyes. The body is not appropriate for culturing of bacteria. Hence, it is a wrong answer.
Option (d) is given as “artificial, colonies”.
The growth cannot take place artificially as the nutrient media are provided for proper growth of microbes and colonies are formed after the growth of bacteria. Hence, it is a wrong answer.
Hence, options (a), (c), and (d) are incorrect.
The growth or culture of the bacteria or microbes is a macroscopic process as it can be observed from time to time and a proper nutrient medium is provided for the culture of microbes.
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Chapter 3 Solutions
Microbiology: A Systems Approach
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