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General Properties Of Microorganisms
See all quizzes of Strerilisation General Properties Of Microorganisms here:
1 When a bacterial cell and mitochondria
are treated with cyanide and carbon
monoxide what happens initially?
a. Respiration inhibits
b. Photosynthesis inhibits
c. Protein synthesis inhibits
d. No effect occurs
2. Which virus was first observed?
a. Hepatitis Virus
b. TMV
c. Cauliflower mossaic virus
d. None of these
3. The most important energy-yielding
reaction for an aerobic organism is
a. Glycosis b. EMP
c. KDPG d. Both b and c
4. A disease that can be transmitted by an
infectious agent from one individual to
another was called
a. Epidemic b. Pandemic
c. Communicable d. Comma
5. Cell cycle regulated by
a. Cyclins b. Cdks
c. Cyclins and Cd ks d. None of these
6. The proteinaceous compound are
converted to ammonia by
a. Putrification bacteria
b. Ammonifiaction bacteria
c. Nitrification bacteria
d. Denitrifying bacteria
7. A cell becomes flaccid when placed in a
a. Isotonic solution
b. Hypertonic solution
c. Hypotonic solution
d. Normal solution
8. A mutation causing a substitution of one
amino acid is called
a. Point mutation b. Silent mutation
c. Missence mutation d. None of these
9. The formation spindle fibres in the process
of cell division is prevented by
a. Corchicine b. ATP
c. Hydrazine d. All of these
10. Important class of respiratory enzymes:
a. NAD b. Cytochromes
c. ATPase d. Hydrolases
11. The primary mode of transmission of
poliomyelitis virus:
a. Flies b. Milk
c. Person to person d. Food and water
12. Genetic constitution of the cell is
a. Phenotype b. Genotype
c. Cryptotype d. Histotype
13. The primary mode of transmission of
poliomyelitis is
a. Oral route b. Blood
c. Milk d. Person to person
14. Cerebral malaria is caused by
a. Plasmodium vivox
b. P.ovale
c. P.falsiparum
d. P.malaria
15. Ergot disease is caused by
a. Puccinia b. Rhizopus
c. Claveceps d. Penicillium
16. Most bacteria require vitamins as
a. Growth Factors
b. Sources of energy
c. Sources of carbon
d. Sources of electron donars
17. Which of these is a trace element for
bacteria?
a. Mg+2 b. Na+
c. Ca+2 d. Mn+2
18. Virulent factor in pneumococcus is
a. Cell wall
b. Capsule
c. Mesosomes
d. Emdotoxins
19. The Bacteria move in response to
magnetic field is
a. Spirochets
b. Treponema
c. Aquaspirillum Magnetotacticum
d. None of these
20. Nagler reaction detects
a. Corynebacterium diphtheriae
b. Clostridium tetani
c. Clostridium perfringens
d. Clostridium botulinum
21. The following organisms lack definite cell
wall
a. Mycoplasma b. L-forms
c. Both a and b d. Bacteria
22. The following disease are caused by
Mycoplasma except
a. Pneumonia in human beings
b. Little leaf of Brinjal
c. Dwarf disease of Mulbery
d. Citrus canker
23. Mycotoxins are produced by
a. Bacteria
b. Fungi
c. Algae
d. Protozoans
24. Size, shape and mode of arrangements
is typical of certain microorganisms.
Match them correctly :
1. Streptococci A. Comma and S shaped form
2. Sarcina B. Gram positive arranged in
chains
3. Bacillus Anthracis C. Multiples of eight
4. Vibrios and Spirilla D. Large bacilli, rectangular and
gram positive
E. Gram negative cocci
F. Rod shaped-acid fast
25. Match the following microorganisms with
their respective characteristic A to E :
1. Bacteria A. Much similar, contains one
type of nucleic acid, do not
reproduce by binary fission
2. Rickettsia B. Parasites on bacteria, highly
specific to one type of
3. Viruses C. Living organism, unicellular,
motile, microscopic and show
reproduction
4. Bacteriophages D. Grows in atmospheric oxygen,
visible without microscope,
produces, disease
E. Tiny microorganism, enable to
grow outside living cells,
retained by bacteria proof
filters
