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Bacteria and Gram Staining- Part 4
See all quizzes of Bacteria anh Gram staining- Part 4 here:
1 Aspergillus fumigatus can infect
a. Birds b. Animals
c. Man d. All of them
2. Enterotoxin responsible for food poisoning
is secreted by
a. Enterococci b. Entamoeba histolytica
c. Enterobacteriaceae d. Straphylococci
3. Autolysis is done by
a. Mitochondria b. Lysosomes
c. Golgi bodies d. Peroxisomes
4. A facultative anaerobic is
a. Only grow anaerobically
b. Only grow in the presence of O2
c. Ordinarily an anaerobe but can grow with
O2
d. Ordinarily an aerobe but can grow in
absence of O2
5. The percentage of O2 required by
moderate anaerobe is
a. 0% b. < 0.5%
c. 2 – 8% d. 5 – 10%
6. Interferon is formed by
a. Lymphocytes b. Lymphoblasts
c. Fibroblasts d. All of these
7. Pigment bearing structure of bacteria are
a. Mesosomes b. Plasmids
c. Mitochondria d. Chromophores
8. Spirochete is
a. Gonococci
b. Strphylococci
c. Treponema pallidum
d. Streptococci
10. Histones are found in
a. Prokaryotes b. Eukaryotes
c. Viruses d. None of these
11. Cell wall of gram negative bacteria is
a. Thick
b. Lipids are present
c. Teichoic acids are absent
d. None of these
12. Cytoplasmic streaming is present in
a. Prokaryotes b. Animals
c. Eukaryotes d. Both a and b
13. The motile bacteria is
a. S. typhi b. K. pneumoniae
c. B. anthracis d. Shigella
14. The stain used to demonstrate fungus
a. Albert
b. Nigerosin
c. Lactophenol cotton blue
d. None of these
14. Exotoxina are
a. Heat labile
b. Heat stable
c. Part of cell wall
d. Polymerized complexes
15. The viruses that attack bacteria are
a. Bacterial viruses b. Bacterial pathogens
c. Bacteriophages d. Various
16. The size of virus particle may range
a. 0.02–0.2 ìm b. 0.5–10 ìm
c. 0.015–0.2 ìm d. 0.1–100 ìm
17. The bacterial cell multiplication is usually
by
a. Mitosis b. Meiosis
c. Conjugation d. Binary-fission
18. Rod shaped bacteria are known as
a. Cocci b. Comma forms
c. Bacilli d. Plemorphic froms
19. All the groups of bacteria have cell wall
a. Mycobacteria b. Mycoplasmas
c. Clostridia d. Rickettsia
20. Thickness of cell wall ranges from
a. 9-10 nm b. 12-13 nm
c. 10-25 nm d. 30-40 nm
21. Teichoic acids and Teichuronic acids are
found in
a. Gram positive bacteria
b. Gram negative bacteria
c. Fungi
d. None of these
22. Meosomes are
a. Kind of ribosomes
b. Formed during cell lysis
c. A part of cell wall
d. Principal sites of respiratory enzymes
23. The characteristic shape of the bacteria
is maintained because of
a. Capsule b. Cell wall
c. Cell membrane d. Slime layer
24. Bacterial capsule is chemically composed
of
a. Polypeptide
b. Polynucleotides
c. Polysaccharides
d. Polypeptides or polysaccharides
25. The cell wall deficient form of bacteria is
a. Mycoplasma b. ‘L’ form
c. Protoplast d. Spheroplast
26. Mesosomes are also known as
a. Mitochondria b. Chloroplasts
c. Golgi complex d. Chondroids
27. The differences between Gram positive
and Gram negative bacteria is shown to
reside in the
a. Cell wall b. Nucleus
c. Cell membrane d. Mesosomes
28. Capsule formation occurs in the presence
of
a. Albumin b. Charcoal
c. Serum d. Starch
29. The virulence determining antigens of
microorganisms may be
a. Proteins and polysaccharides
b. Carbohydrate – protein complexes
c. Polysaccharide – Phospholipid – Protein
complexes
d. All of these
30. Organelles with hydrolytic enzymes are
a. Mitochondria b. Golgi complex
c. Lysosomes d. Ribosomes
