Consider the following :
1. Bacteria
2. Fungi
3. Virus
Which of the above can be cultured in artificial/synthetic medium?
Correct Answer: Option A
Explanation
1. Culturing refers to growing microorganisms under controlled laboratory conditions.
2. An artificial/synthetic medium is a laboratory growth medium whose exact chemical composition is known. It typically contains nutrients like carbon sources, nitrogen sources, salts, and growth factors necessary for microbial growth.
3. Statement 1: Bacteria are prokaryotic organisms that can generally be grown on various types of artificial/synthetic media, provided the necessary nutrients and conditions (temperature, pH, oxygen) are met. Correct.
4. Statement 2: Fungi (including yeasts and molds) are eukaryotic organisms that can also be readily cultured on appropriate artificial/synthetic media containing the required nutrients. Correct.
5. Statement 3: Viruses are obligate intracellular parasites. They lack the cellular machinery for self-replication and must infect living host cells to reproduce. Therefore, viruses cannot be cultured in an artificial/synthetic medium alone; they require living cells (e.g., cell cultures, embryonated eggs, or living animals) for propagation. Incorrect.
Thus, only Bacteria and Fungi can be cultured in artificial/synthetic medium.
Master UPSC Revision
Get 10,000+ topic-wise MCQs, spaced repetition, daily CSAT challenges, and detailed performance analytics.
Coming Soon to Play Store