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Microbial Culture

CBSE · Class 12 · Biotechnology

Flashcards for Microbial Culture — CBSE Class 12 Biotechnology. Quick Q&A cards covering key concepts, definitions, and formulas.

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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84 Flashcards
Card 1Introduction to Microbiology

What is microbiology?

Answer

Microbiology is the study of small living organisms called microorganisms. It is important in medicine, agriculture, food technology, environmental science, pharmaceutical work, and genetic engineerin

Card 2सूक्ष्मजीवविज्ञान का परिचय

सूक्ष्मजीवविज्ञान क्या है?

Answer

सूक्ष्मजीवविज्ञान सूक्ष्म जीवित जीवों, जिन्हें सूक्ष्मजीव कहा जाता है, के अध्ययन को कहते हैं। यह चिकित्सा, कृषि, खाद्य प्रौद्योगिकी, पर्यावरण विज्ञान, औषधि कार्य, और आनुवंशिक अभियांत्रिकी में महत्वपूर

Card 3ऐतिहासिक परिप्रेक्ष्य

सूक्ष्मदर्शी किसने विकसित किया और animalcules शब्द किसने गढ़ा?

Answer

डच व्यापारी Antonie van Leeuwenhoek ने 1670s से 1680s के बीच सूक्ष्मदर्शी विकसित किया। उन्होंने सूक्ष्म जीवों को देखा और उनके लिए animalcules शब्द गढ़ा।

Card 4Historical Perspective

Who developed the microscope and coined the term animalcules?

Answer

Antonie van Leeuwenhoek, a Dutch merchant, developed the microscope in the 1670s to 1680s. He observed microscopic organisms and coined the term animalcules for them.

Card 5Historical Perspective

What did Lazzaro Spallanzani observe in boiled broth?

Answer

He observed that boiled broth had no microscopic forms of life. This supported the idea that microorganisms did not arise from lifeless matter on their own.

Card 6ऐतिहासिक परिप्रेक्ष्य

Lazzaro Spallanzani ने उबाले हुए शोरबे में क्या देखा?

Answer

उन्होंने देखा कि उबाले हुए शोरबे में जीवन के कोई सूक्ष्म रूप नहीं थे। इससे इस विचार का समर्थन हुआ कि सूक्ष्मजीव निर्जीव पदार्थ से अपने आप उत्पन्न नहीं होते।

Card 7ऐतिहासिक परिप्रेक्ष्य

Louis Pasteur ने हंस-गर्दन वाले फ्लास्क प्रयोगों से क्या सिद्ध किया?

Answer

Louis Pasteur ने spontaneous generation को असिद्ध किया और germ theory of disease का प्रतिपादन किया। उनके प्रयोगों ने दिखाया कि सूक्ष्मजीव बाहर की हवा से आते हैं और संक्रामक रोग पैदा करते हैं।

Card 8Historical Perspective

What did Louis Pasteur prove with swan-neck flask experiments?

Answer

Louis Pasteur disproved spontaneous generation and postulated germ theory of disease. His experiments showed that microorganisms came from outside air and caused infectious diseases.

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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 flashcards are available for Microbial Culture?
There are 84 flashcards for Microbial Culture covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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