JOIN ADRE 2.0 Telegram Group

NCERT - Microbes in Human Welfare Questions and Answers of Class 12 Biology | GkSeries

Questions
46 Which of the following is not used as a biopesticide?
1 Trichoderma harzianum
2 Bacillus thuringiensis
3 Xanthomonas campestris
4 Nuclear Polyhedrosis Virus (NPV)

Answer: Xanthomonas campestris
47 Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
1 Clostridium butylicum - lactic acid
2 Aspergillus niger - citric acid
3 Yeast – statins
4 Acetobacter aceti - acetic acid

Answer: Clostridium butylicum - lactic acid
Advertisement
Article and Schedule Quiz Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

48 Which one of the following plant is commonly used as green manure ?
1 Cassia fistula
2 Acacia nilotica
3 Dalbergia sissoo
4 Crotalaria juncea

Answer: Crotalaria juncea
49 Cyanobacteria serves as important biofertilizers in the fields of
1 Rice
2 Maize
3 Wheat
4 Sugar cane

Answer: Wheat
50 Which of the following is wrongly matched?
1 Aloe – Medicine
2 Petunia – Fumigatory
3 Sesbania – Fodder
4 Asparagus – Vegetable

Answer: Petunia – Fumigatory
51 Antibiotics mostly obtained from
1 algae
2 fungi
3 actinomycetes
4 both b and c

Answer: both b and c
52 Method of controlling pest that relies on natural predation rather than introduced chemical
1 Predation
2 Chemical control
3 Biological control
4 None of these

Answer: Biological control
53 . ----- serves as an important biofertlizer in paddy field
1 Cyanobacteria
2 Clostridium
3 Mycorrhiza
4 Frankia

Answer: Cyanobacteria
54 Biogas can be good substitute for
1 fuel wood
2 coal
3 charcol
4 oil and petrol

Answer: fuel wood
55 Which of the following is a gram-negative bacterium?
1 Escherichia coli
2 Bacillus subtilis
3 Streptomyces coelicolor
4 Amycolatopsis orientalis

Answer: Escherichia coli
56 Organism like Escherichia coli and Chlamydia trachomatis fall into which domain?
1 Eukarya
2 Archaea
3 Bacteria
4 Animalia

Answer: Bacteria
57 From which microorganism streptomycin is prepared?
1 Sterptomyces ramous
2 Sterptomyces antibiotics
3 Sterptomyces nodosus
4 Sterptomyces griseus

Answer: Sterptomyces griseus
58 The bacteria that grow on milk and convert it to curd
1 Clostridium
2 Lactobacillus
3 Nitosomonas
4 Acetobacter

Answer: Lactobacillus
59 The microbe that used in control of oil spills
1 Methanobacterium
2 Rhizobium
3 Pseudomonas putida
4 Bacillus thuringiensis

Answer: Pseudomonas putida
60 The free living fungus used as a biological control against several fungal pathogen of plants
1 Trichoderma
2 Pencillium
3 Frankia
4 Saccharomyces

Answer: Trichoderma

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!

Chapters

Advertisement