Microbial Culture — Important Questions
CBSE · Class 12 · Biotechnology
63 important questions from Microbial Culture for CBSE Class 12 Biotechnology, with answers. Written for the board exams 2027.
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See them allImportant Questions from Microbial Culture
Which period is called the Golden Age of Microbiology?
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Late 1800s to early 1900s
The late 1800s to early 1900s are called the Golden Age of Microbiology because many disease-causing microorganisms were discovered then.
What medium did Louis Pasteur use in 1860 for microbial growth?
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A medium containing yeast, ash and ammonium salts
Pasteur used a medium containing yeast, ash and ammonium salts, which supplied nutrients needed for growth.
Why did Ferdinand Cohn refine Pasteur's medium?
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By varying the types of sugars to make a more versatile basal medium
Ferdinand Cohn refined Pasteur's medium by varying sugar types so that the medium became more versatile.
In 1881, why did Robert Koch consider using solid media?
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Broth media made isolation of pure cultures difficult
Koch recognised the difficulties of using broth media for isolation and therefore considered solid media.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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