Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces?

Related Mcqs:

1. The structure in involved in bacterial attachment to cell surface is_______________?

   A. Capsule
   B. Fimbria
   C. Flagella
   D. None of the above

2. The bacterial cell wall has all of the following properties except______________?

   A. It consists of a mixed polymer called peptidoglycon
   B. It is the structure principally responsible for the reaction of gram staining
   C. It is a unique flexible plastic structure
   D. It contains D-isomers of amino acids

3. The incisal edges and the incisal thirds of facial surfaces of mandibular incisors and canines generally oppose lingual surfaces of maxillary incisor and canines _____________?

   A. Within the incisor thirds
   B. At the junction of middle and cervical thirds
   C. At the linguo cervical ridges
   D. Immediately incisal to cingulam

4. Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?

   A. Cocci
   B. Spirochetes
   C. Bacteriophages
   D. Filamentous rods

5. Proteins are linear polymers of amino acids, They fold into compact structures Sometimes these folded structures associate to form homo or hetero dimers Which one of the following refers to this associated form ?

   A. Denatured state
   B. Molecular aggregation
   C. Precipitation
   D. Quaternary structure

6. Bacterial cell does not possess___________________?

   A. dna
   B. Ribosome
   C. Mitochondria
   D. Cell wall

7. All of the following structures are in lateral wall of cavernous sinus except______________?

   A. Occulomotor
   B. Trochlear
   C. Trigeminal
   D. Ophthalmic

8. The following are applicable to bacterial genoms except________________?

   A. It is composed of DNA
   B. It doe not contain histones
   C. It is circular
   D. Its DNA has both introns and extrons

9. All of the following antibacterial agents acts by inhibiting cell wall systhesis except________________?

   A. Carbapenems
   B. Monobactams
   C. Cephamycins
   D. Nitrofurantoins

10. S. mutans is involved in dental caries initiation Other bacteria also involved is______________?

    A. S. Sarcinus
    B. S. macae
    C. S. sanguis
    D. S. salivarius