KINGDOM MONERA

KINGDOM MONERA

1. The smallest free living organisms in the world are

a. Mycoplasma b. Virus c. Prions d. Bacteria

2. In five kingdom system of classification of Whittaker, prokaryotes belong to

a. Protista b. Monera c. Mycota d. Prokaryota

3. The size of bacterial cells ranges between

a. 0.1-5m b. 0.5 -3m c. 0.5-3Å d. 0.1-0.3m

4. Sterilization is an autoclaves that

a. Destroys the bacterial activity b. Denatures the enzymes c. Both a and b

c. None of these

5. How many bacteria are produced in four hours if a bacterium divides once in half an hour?

a. 8 b. 64 c. 128 d. 25

6. Nodulated roots contain Rhizobium leguminosarum (a symbiotic nitrogen fixing bacterium).

Which plant has no nodulated roots?

a. Pea b. Castor c. Dalbergia d. Gram

7. Gram stain is

a. A stain obtained from gram seeds b. Technique developed by gram

c. a chemical d. a trade mark

8. The main difference between Gram +ve and Gram -ve bacteria lies in

a. Cell wall b. Pili c. Flagella d. Plasmids

9. Free living aerobic nitrogen fixing bacteria

a. Azotobacter b. Rhizobium c. E. coli d. Spirulina

10. A free living anaerobic nitrogen fixing bacterium soil is

a. Azotobacter b. Klebsiella c. Clostridium d. Rhizobium

11. In bacteria, alternation of generations is absent because of the absence of

a. Nucleus and chromosomes b. DNA and histone c. Syngamy and meiosis

d. Equational division

12. Nitrosomonas and Nitrobacter oxidises

a. Nitrate to nitrogen b. CO2 to carbohydrates c. N2 to NO3 d. NH3 to NO

13. Non symbiotic nitrogen fixers are

a. Pseudomonas b. Azotobacter c. Blue Green algae d. Soil fungi

14. Cyanophyceae belongs to a. Protista b. Monera c. Plantae

d. All of these

15. Many blue green algae occur in thermal springs. The temperature tolerance of these algae

has been attributed to their

a. Cell wall structure b. Cell organisation

c. Mitochondrial structure d. Presence of homo polar bonds in their proteins

16. Bacteria differ from viruses in the presence of

a. True nucleus b. Cytoplasm c. Causing disease d. All of these

17. Which of the following plants is found in large number in soil?

a. Fungi b. Algae c. Bacteria d. Cyanobacteria

18. Diphtheria is caused by

a. Corynebacterium b. Diplococcus c. Salmonella d. Mycobacterium

19. Tuberculosis (TB) is due to

a. Mycobacterium b. Salmonella c. Clostridium d. Vibrio

20. Waksman got Nobel Prize for the discovery of

a. Streptomycin b. Penicillin c. Chloromycetin d. Erythromycin

21. Little leaf of Brinjal is due to

a. Alga b. Bacteria c. Mycoplasma d. Fungus

22. In cheese manufacture, microorganisms are important for

a. Both the souring and ripening processes

b. The development of resistance to spoilage only

c. The ripening only d. Souring of milk only

23. Syphilis is due to a spirochaete known as

a. Treponema pallidum b. Strepotococcus aureus c. Clostridium d. Hemophilus

24. Vinegar is fermented from alcohol by

a. Azotobacter b. Acetobacter c. Bacillus d. Clostridium

25. Milk is spoiled by

a. Lactobacillus b. Azotobacter c. Clostridium d. Rhizobium


ANSWERS

1. a 2. b 3. b 4.c 5. d 6. b 7. c 8. a 9. a 10. c

11. c 12. d 13. b 14. b 15. d 16. b 17. c 18. a 19. a 20. a

21. c 22. a 23. a 24. b 25. a