Download NEET MCQs for NEET Biology: Microbes In Human Welfare
Access targeted multiple-choice questions for Microbes In Human Welfare designed to align with the latest NEET academic syllabus for NEET Biology. These objective practice sets help students evaluate their conceptual understanding and improve exam readiness.
Chapter-wise Objective Questions: Microbes In Human Welfare
Access the complete set of multiple-choice questions for Microbes In Human Welfare below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official NEET textbooks.
Multiple Choice Questions
(a) Virus
(b) Bacteria
(c) Viroids
(d) Prions
Show Answer & Explanation
Answer: (d) Prions
Explanation:
1. The correct option is (4) Prions.
2. Virus = Protein + nucleic acid Bacteria = Cell envelope + cytoplasm + nucleoid Viroids = Infectious RNA Prions = Infectious protein.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Prions.
(a) Viroids
(b) Bacteria
(c) Fungi
(d) Virus
Show Answer & Explanation
Answer: (a) Viroids
Explanation:
1. The correct option is (1) Viroids.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Viroids.
(a) Can be grown on nutritive media
(b) Can be seen by naked eyes
(c) Are useful in study of microbes
(d) More than one option is correct
Show Answer & Explanation
Answer: (d) More than one option is correct
Explanation:
1. The correct option is (4) More than one option is correct.
2. All aspects are related with microbial colonies. (Microbes in Household Products).
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. Check every option separately before choosing a combined answer.
(a) Causes souring of milk by decreasing nutritional quality
(b) Increases the amount of vitamin-D
(c) Checks disease causing microbes
(d) It produces alkali which coagulate and partially digest the milk proteins
Show Answer & Explanation
Answer: (c) Checks disease causing microbes
Explanation:
1. The correct option is (3) Checks disease causing microbes.
2. LAB checks disease causing microbes in our stomach.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Checks disease causing microbes.
(a) Saccharomyces cerevisiae
(b) Saccharomyces ellipsoidens
(c) Saccharomyces pireformis
(d) Saccharomyces sake
Show Answer & Explanation
Answer: (a) Saccharomyces cerevisiae
Explanation:
1. The correct option is (1) Saccharomyces cerevisiae.
2. Saccharomyces cerevisiae – Baker's yeast Saccharomyces ellipsoidense – Wine yeast Saccharomyces piroformis – Ale yeast Saccharomyces sake – Sake yeast.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Saccharomyces cerevisiae.
(a) Tea
(b) Toddy
(c) Beer
(d) Cashew apple
Show Answer & Explanation
Answer: (b) Toddy
Explanation:
1. The correct option is (2) Toddy.
2. Toddy obtain by fermentation of sap secreted from palm e.g. Caryota urens.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Toddy.
(a) Penicillium roquefortii
(b) P. camembertii
(c) Propionibacterium sharmanii
(d) Streptomyces griseus
Show Answer & Explanation
Answer: (c) Propionibacterium sharmanii
Explanation:
1. The correct option is (3) Propionibacterium sharmanii.
2. Penicillium roquefortii – Roquefort cheese P. camembertii – Camembert cheese Propionibacterium sharmanii – Swiss cheese Streptomyces griseus – (Microbes in Industrial Products).
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Propionibacterium sharmanii.
(a) Digesters
(b) Fermentors
(c) Dough
(d) Concrete tank
Show Answer & Explanation
Answer: (b) Fermentors
Explanation:
1. The correct option is (2) Fermentors.
2. Very large containers for production of beverages at industrial scale are Fermentors.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Fermentors.
(a) Rum
(b) Beer
(c) Brandy
(d) Whisky
Show Answer & Explanation
Answer: (b) Beer
Explanation:
1. The correct option is (2) Beer.
2. Beer - without distillation Rum, Brandy & Whisky - by distillation.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Beer.
(a) Are regarded as one of the most significant discovery of twenty first century
(b) Have rarely contributed to human welfare
(c) Are produced by some plants and all animals
(d) Can kill or retard the growth of disease-causing microbes
Show Answer & Explanation
Answer: (d) Can kill or retard the growth of disease-causing microbes
Explanation:
1. The correct option is (4) Can kill or retard the growth of disease-causing microbes.
2. Pro-life chemicals are antibiotic which can kill or retard the growth of disease-causing microbes.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Can kill or retard the growth of disease-causing microbes.
(a) Penicillium notatum
(b) Staphylococci
(c) Aspergillus niger
(d) Bacillus brevis
Show Answer & Explanation
Answer: (a) Penicillium notatum
Explanation:
1. The correct option is (1) Penicillium notatum.
2. First antibiotic was obtained from Penicillium notatum (Fungus).
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Penicillium notatum.
(a) A-Waksman ; B-Streptococcus
(b) A-Fleming; B-Penicillium notatum
(c) A-Waksman; B-Bacillus brevis
(d) A-Fleming; B-Staphylococci
Show Answer & Explanation
Answer: (d) A-Fleming; B-Staphylococci
Explanation:
1. The correct option is (4) A-Fleming; B-Staphylococci.
2. The first antibiotic was discovered accidently by Fleming while working on Streptococcus bacterium Penicillium strains developed.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. Check every option separately before choosing a combined answer.
(a) Alexander Fleming
(b) Ernest Chain
(c) Howard Florey
(d) More than one option is correct
Show Answer & Explanation
Answer: (d) More than one option is correct
Explanation:
1. The correct option is (4) More than one option is correct.
2. Commercial extraction of penicillin was done by Ernest Chain and Howard Florey.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. Check every option separately before choosing a combined answer.
(a) a(i), b(ii), c(iii), d(iv)
(b) a(ii), b(i), c(iv), d(iii)
(c) a(ii), b(iv), c(iii), d(i)
(d) a(iii), b(i), c(iv), d(ii)
Show Answer & Explanation
Answer: (b) a(ii), b(i), c(iv), d(iii)
Explanation:
1. The correct option is (2) a(ii), b(i), c(iv), d(iii).
2. Aspergillus niger – Citric acid Clostridium butylicum – Butyric acid Acetobacter aceti – Acetic acid Lactobacillus – Lactic acid.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. Check every option separately before choosing a combined answer.
(a) Ligases
(b) Proteases
(c) Lipases
(d) Pectinases
Show Answer & Explanation
Answer: (c) Lipases
Explanation:
1. The correct option is (3) Lipases.
2. Lipases obtained from Candida lipolytica and fungi.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Lipases.
(a) Bacterium; Lactobacillus
(b) Fungi; Aspergillus niger
(c) Fungi; Penicillium notatum
(d) Bacterium; Streptococcus
Show Answer & Explanation
Answer: (d) Bacterium; Streptococcus
Explanation:
1. The correct option is (4) Bacterium; Streptococcus.
2. Bacterium; Streptococcus secrete streptokinase enzyme.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Bacterium; Streptococcus.
(a) Streptokinase
(b) Statins
(c) Cyclosporin-A
(d) Lipases
Show Answer & Explanation
Answer: (c) Cyclosporin-A
Explanation:
1. The correct option is (3) Cyclosporin-A.
2. Cyclosporin-A produced by Trichoderma polysporum.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Cyclosporin-A.
(a) Immunosuppressive agent
(b) Blood-cholesterol lowering agent
(c) Clot buster
(d) Bottled juices clarifying agents
Show Answer & Explanation
Answer: (b) Blood-cholesterol lowering agent
Explanation:
1. The correct option is (2) Blood-cholesterol lowering agent.
2. The product of Monascus purpureus has been commercialised as Blood-cholesterol lowering agent.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Blood-cholesterol lowering agent.
(a) Cyclosporin-A
(b) Penicillin
(c) Statins
(d) Alcohol
Show Answer & Explanation
Answer: (c) Statins
Explanation:
1. The correct option is (3) Statins.
2. Statins produced by yeast Monascus purpureus fungus. (Microbes in Sewage Treatment).
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Statins.
(a) Photoautotrophic microbes, naturally present in sewage
(b) Chemoautotrophic microbes, naturally present in sewage
(c) Heterotrophic microbes naturally present in sewage
(d) Heterotrophic microbes inoculated in the sewage from outside only
Show Answer & Explanation
Answer: (c) Heterotrophic microbes naturally present in sewage
Explanation:
1. The correct option is (3) Heterotrophic microbes naturally present in sewage.
2. Treatment of waste water is done by heterotrophic microbes naturally present in sewage.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Heterotrophic microbes naturally present in sewage.
(a) Physical process which involves sedimentation only
(b) Physical process which involves both filtration and sedimentation
(c) Biological process which involves formation of primary sludge and effluent
(d) Biological process which involves both filtration and sedimentation
Show Answer & Explanation
Answer: (b) Physical process which involves both filtration and sedimentation
Explanation:
1. The correct option is (2) Physical process which involves both filtration and sedimentation.
2. Primary treatment of sewage involves physical process i.e. filtration and sedimentation.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. The point to remember: Physical process which involves both filtration and sedimentation.
(a) A - Primary sludge; B - effluent
(b) A - Primary sludge; B - secondary effluent
(c) A - Activated sludge; B - clarified effluent
(d) A - Activated sludge; B - effluent
Show Answer & Explanation
Answer: (a) A - Primary sludge; B - effluent
Explanation:
1. The correct option is (1) A - Primary sludge; B - effluent.
2. During primary treatment, all solids that settle forms – primary sludge and the supernatant forms – effluent.
Teacher's Note:
1. Link this question to the matching NCERT topic and revise it.
2. Check every option separately before choosing a combined answer.
Download Chapter MCQs: NEET Biology Microbes In Human Welfare
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FAQs
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