12th Standard Syllabus & Materials

12th Standard

TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

12th Standard Biology English Medium Zoology - Microbes in Human Welfare 1 Mark Creative Question Paper and Answer Key 2022 - 2023

Published on: 27/08/2022

QB365 provides a detailed and simple solution for every Possible Creative Questions in Class 12 Biology Subject - Zoology - Microbes in Human Welfare, English Medium. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.

Download Tamil Nadu 12th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

Questions + Answers key

Take MCQ Biology Test

QB365 Student Learing Managemnet System

Std: 12th Standard - Biology

chapter: - Model Question paper

Visit QB365-SLMS - https://www.qb365.in/slms/ Complete Questions and Answers

Questions:

Multiple Choice Question

15 x 1 = 15

Enzyme used for removing oily stains from the clothes:

(a)

Cellulase

(b)

Pectinase

(c)

Protease

(d)

Lipase

Mycorrhiza cannot contribute to this process.

(a)

Resistance to pathogens

(b)

Tolerance to salinity

(c)

Help to fix nitrogen

(d)

Enhance plant growth

__________is free living bacteria which acts as a biofertilizer.

(a)

Azospirillum

(b)

Nostoc

(c)

Oscillatoria

(d)

Glomus

_________is used for recycling of PET plastics

(a)

Dechloromonas aromatica

(b)

Phanerochaete chrysosporium

(c)

Ideonella sakaiensis

(d)

Nitrosomonas

________is not used as a biofertilizer

(a)

Bacillus thuringiensis

(b)

Rhizobium

(c)

Nostoc

(d)

Anabaena

The first bio herbicide was got from_______

(a)

Trichoderma

(b)

Phytophthora species

(c)

Bacillus

(d)

Aspergillus

_________got from fungi is used as an immune suppressant in organ transplantation.

(a)

Statin

(b)

Cyclosporin A

(c)

Insulin

(d)

Protease

Genetically engineered __________are used as clot buster in cardiac related issues

(a)

Staphylococcus

(b)

Yeast

(c)

Penicillium

(d)

Streptococci

Aspergillus niger helps to produce________

(a)

Citric acid

(b)

Acetic acid

(c)

Turmeric acid

(d)

Lactic acid

10.

Lactobacillus helps to produce________

(a)

Citric acid

(b)

Milk

(c)

Acetic acid

(d)

Butyric acid

11.

WorId Biofuel day is observed on_______

(a)

10^thSeptember

(b)

22^nd April

(c)

10^th August

(d)

17^th October

12.

The enzyme________is got from Aspergillus.

(a)

Rennet

(b)

Zymase

(c)

Amylase

(d)

Lipase

13.

Which of the following is not involved in nitrogen fixation?

(a)

Pseudomonas

(b)

Azotobacter

(c)

Anabaena

(d)

Nostac

14.

Which of the following bacteria is used extensively as a bio-pesticide?

(a)

Bacillus thurigiensis

(b)

Bacillus subtilis

(c)

Lactobacillus acidophilus

(d)

Streptococcus lactis

15.

Cry toxins obtained from Bacillus thuringiensis are effective against for______

(a)

Mosquitoes

(b)

Flies

(c)

Nematodes

(d)

Bollworms

Visit QB365-SLMS - https://www.qb365.in/slms/

Answers Key:

Multiple Choice Question

15 x 1 = 15

(d)
Lipase

(a)
Azospirillum

(a)
Bacillus thuringiensis

(b)
Phytophthora species

(b)
Cyclosporin A

(d)
Streptococci

(d)
Lactic acid

10.

(a)
Citric acid

11.

12.

13.

(a)
Pseudomonas

14.

(a)
Bacillus thurigiensis

15.

(d)
Bollworms

12th Standard Syllabus & Materials

NEW

12th Standard

TN 12th Computer Applications களப்பெயர் முறைமை (DNS) Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications வலையமைப்பு எடுத்துக்காட்டுகள் மற்றும் நெறிமுறைகள் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications கணினி வலையமைப்பு ஓர் அறிமுகம் Sample Question Papers Study Material - QB365 Set A

NEW

12th Standard

TN 12th Computer Applications PHP-உடன் MySQL-ஐ இணைத்தல் Sample Question Papers Study Material - QB365 Set A

NEW MCQ Practice Test - Tamilnadu Stateboard Class 12

Biology Tamilnadu Stateboard Class 12 MCQ Practice Test

Start Test

Practice More MCQs

Biology Tamilnadu Stateboard Class 12 MCQ Practice Tests

Tamilnadu Stateboard Class 12 MCQ Practice Test

Start Test

Practice More MCQs

Tamilnadu Stateboard Class 12 MCQ Practice Tests

12th Standard Study Materials

Model Question paper

Previous Year Question paper

Revision Test

Quarterly Exams

Half Yearly Exams

Important Questions

Creative Questions

Tamilnadu Stateboard Standards

12th Standard

11th Standard

9th Standard

6th Standard

10th Standard

7th Standard

8th Standard