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Chapter 6 of 13
Important Questions

Microbial Culture

CBSE · Class 12 · Biotechnology

Most important questions from Microbial Culture for CBSE Class 12 Biotechnology board exam 2026. MCQs, short answer, and long answer questions with marks.

63 questions84 flashcards5 concepts

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A comparison diagram showing Louis Pasteur's swan-neck flask experiment, illustrating how life does not arise spontaneously from non-living matter.
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63 Questions·
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Sample Questions

1multiple choice
1 marks

Which period is called the Golden Age of Microbiology?

Show answer

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.

2multiple choice
1 marks

What medium did Louis Pasteur use in 1860 for microbial growth?

Show answer

A medium containing yeast, ash and ammonium salts

Pasteur used a medium containing yeast, ash and ammonium salts, which supplied nutrients needed for growth.

3multiple choice
1 marks

Why did Ferdinand Cohn refine Pasteur's medium?

Show answer

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.

4multiple choice
1 marks

In 1881, why did Robert Koch consider using solid media?

Show answer

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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Frequently Asked Questions

What are the important topics in Microbial Culture for CBSE Class 12 Biotechnology?
Microbial Culture covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Microbial Culture — CBSE Class 12 Biotechnology?
Understand the core concepts first, then work through the 63 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Microbial Culture?
There are 63 practice questions available for Microbial Culture. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for CBSE Class 12 Biotechnology.