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JAC 12th Biology Important Questions Chapter 10: Microbes in Human welfare

By: Vikash Kumar

On: June 24, 2025

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JAC 12th Biology Important Questions Chapter 10 : झारखण्ड बोर्ड कक्षा 12th सभी विद्यार्थियों के लिए Biology में Chapter 10: Microbes in Human welfare के पिछले वर्षो में जो भी प्रश्न पूछे गए हैं, उनकी चर्चा हम इसमें करेंगे तो इन Important Questions को पढ़ लीजिए.

Jac 12Th Biology Important Questions Chapter 10: Microbes In Human Welfare
Jac 12Th Biology Important Questions Chapter 10: Microbes In Human Welfare

JAC 12th Biology Important Questions Chapter 10

विद्यार्थी इसका उत्तर स्वयं करें। ये सारे प्रश्न आपके परीक्षा (JAC 12th Biology Important Questions For Board Exams) में बार – बार पूछे जा रहे है। इसमें आपको सभी Chapter का अलग-अलग पिछले 16 वर्षों के महत्वपूर्ण प्रश्न मिलेंगे। यानि 2006-2020 इसमें आपको ये भी बताया जा रहा है कि कौन से प्रश्न किस तरह से एवं कितने Biology के पूछे जा रहें है.

Name of OrganisationJharkhand Academic Council Ranchi
CategoryImportant Question
ArticleJAC 12th Biology Important Questions
StateJharkhand
Question TypesPrevious Year & Important Questions
Class12th(Inter)
StreamScience
SubjectBiology
Chapter10th Chapter
Chapter NameMicrobes in Human welfare
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JAC 12th Biology Previous years Important Questions Chapter 10

Chapter 10. Microbes in Human welfare
1 marks question.

Q1.The bioactive molecule produced by a fungus ‘Trichoderma polysporum’ which acts as immunosuppresive agent is… … … (Cyclosporin A/Station)[JAC2011]
Q2.Before the baking of loaf the bubbles inside the bread contains:-[JAC2015]
a) CO2 and Ethyl alcohol
b) Ethyl alcohol
c) CO2
d) Methyl and Ethyl alcohol
Q3.The toxin protein produced by Bacillus thuringiensis is :-[JAC2015,2018, 2019]
a) Cry- protein
b) Auxin
c) Opine
d) Leg haemoglobin

Q4.The bacteria which converts milk into curd is :-[JAC2016]
a) Lactobacillus
b) Streptococcus
c) Clostridium
d) Spirillium
Q5.Bhopal gas tragedy is related to which gas? [JAC2019]
a) Methyl isocynate
b) Methyl isocynanide
c) CO2
d) SO2

2 Marks Questions

Q1.How mycorrhiza benefit plants?[JAC 2006]
Q2.Write down the name of gases present in biogas. [JAC2009]
Q3.The anaerobic breakdown of carbohydrate is called (a) ……..(fermentation/putrefaction) and that of protein is called (b) … …(fermentation/ putrefaction).

Q4.What are other bioactive molecules? Name them. [JAC 2016]
Q5.Write two sources of bio-fertilizer. [JAC 2019]

3 Marks Questions

Q1.What is biofertilizer?Mention it’s three important benefits. [JAC2009, 2013]
Q2.Write down the function of Cyclosporin-A, stations and Streptokinase. [JAC2009]

Q3. What is Bio-gas? [JAC 2017,2019]
Q4.Match the following:- [JAC2018]
ColumnA
1.Lactobacillus
2.Saccharomyces cerevisiae
3.Penicillium notatum
ColumnB
a)Fermentation
b)Antibiotics
c)Curd

Conclusion

उम्मीद करते हैं या आर्टिकल(JAC 12th Biology Important Questions Chapter 10) आपको पसंद आया होगा अगर आया हो तो कृपया करके अपना प्यारा सा कंमेंट नीचे कर दे उसके साथ ही अधिक अपडेट जानने के लिए हमारे टेलीग्राम ग्रुप में ज्वाइन कर ले.

Vikash Kumar

Hello, I am Vikash Kumar, the owner of this website from Jharkhand. I have over three years of experience in blogging. On this website, you will find blogs in various categories, including job postings, educational news, JAC Board All updates, Like Results, Model Paper or Any kind of info related to the Jac Board, CBSE, JSSC, JPSC, Jharkhand Jobs I have been blogging for the past four years and have explored multiple niches. If you wish to contact me, please reach out via jharkhandlab3@gmail.com. Thank you!

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