BSEB Inter Exam Biology Most VVI Objective MCQ Question in English
10. MICROBES IN HUMAN WELFARE
1. Blue green algae and Rhizobium are present in root nodules of plants of which family ?
(A) Apocynaceae
(B) Asteraceae
(C) Leguminosae
(D) Poaceae
| Answer :- (C) |
2. Which can perform the main role in Biological nitrogen fixation ?
(A) Nostoc
(B) Anabaena
(C) Blue-green algae
(D) All of these.
| Answer :- (D) |
3. Which bacteria are utilised in gobar gas plant?
(A) Nitrifying bacteria
(B) Ammonifying bacteria
(C) Denitrifying bacteria
(D) Mathanogens
| Answer :- (D) |
4. Cyanobacteria are useful biofertilizers in the field of :
(A) Maize
(B) Wheat
(C) Sugarcane
(D) Rice
| Answer :- (D) |
5. High amount of E.coli in water is an indicator of:
(A) Hardness of water
(B) Industrial pollution
(C) Sewage pollution
(D) All of these
| Answer :- (C) |
6. Which of the following is an important source of biofertilizer ?
(A) Green algae
(B) Yeast
(C) Bacteria
(B) Red algae
| Answer :- (C) |
7. The bacteria found in the root modules of leguminous plants are :
(A) Rhizobium
(B) Azotobacter
(C) Staphylococcus
(D) Lactobacillus
| Answer :- (A) |
8. The flour of Idli and Dosa is made by the use of which microbe ?
(A) Bacteria
(B) Lactobacillus
(C) Virus
(D) Yeast
| Answer :- (A) |
9. Honey is made by :
(A) male honeybee
(B) queen honeybee
(C) worker honeybee
(D) both ‘A’ and ‘B’
| Answer :- (C) |
10. Pasteurization is heating of:
(A) milk only
(B) any liquid at 100°C
(C) any liquid above 70°C
(D) any liquid between 70°C – 80°C followed by rapid cooling
| Answer :- (D) |
11. T-lymphocytes originate from:
(A) bone-marrow
(B) stomach
(C) thymus
(D) liver
| Answer :- (A) |
12. Which one is used for preparation of bread :
(A) Lactobacillus
(B) Streptobacillus
(C) Aspergillus
(D) S. cerevisiae
| Answer :- (D) |
13. Probiotics are :
(A) New kind of food allergens
(B) Safe antibiotics
(C) Live microbial food supplement
(D) Cancer inducing microbes
| Answer :- (C) |
14. Which of the fungus produces cyclosporine A, an immuno suppressive agent used in organ transplanted patient ?
(A) Trichoderma Polysperma
(B) Erysiphae
(C) Puccinia gramins
(D) Peziza
| Answer :- (A) |
15. The group of bacteria, which grow anaerobically on the cellulose material in anaerobic sludge digester and rumen of cattle are called :
(A) Méthanogen
(B) Plasmalogen
(C) Immunogen
(D) None of these
| Answer :- (A) |
16. For Nitrogen fixation in soil we may use :
(A) Cyanobacteria
(B) Protozoans
(C) Nematodes
(D) Wheat plants
| Answer :- (A) |
17. Brewery is concerned with:
(A) Saccharomyces
(B) Protozoans
(C) Pteridophytes
(D) Marsupials
| Answer :- (A) |
18. Chlorella is a type of :
(A) bacteria
(B) algae
(C) protozoa
(D) single cell protein
| Answer :- (B) |
19. Which microbe is useful in the formation of curd from milk?
(A) Clostridium
(B) Lactobacillus
(C) Both ‘A’ and ‘B’
(D) Streptococcus
| Answer :- (B) |
20. Which of the following are single cell protein ?
(A) Spirulina
(B) Chlorella
(C) Scenadesmus
(D) All of these
| Answer :- (A) |
21. Bio Fertilizer is present in root nodules of which non leguminous plant?
(A) Azotobactor
(B) Clostridium
(C) Frankia
(D) None
| Answer :- (A) |
22. Masses of bacteria associated with fungal filament to form a mesh like structure is called :
(A) Flocs
(B) Methanogen
(C) Plasminogen
(D) None of these
| Answer :- (A) |
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