Microbiology Objective Questions { Bacteria Morphology }

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15. The last step in synthesis of peptidoglycan is

A. attachment of a peptide to muramic acid

B. attaching two amino acids to form a cross-link

C. attachment of a portion of peptidoglycan to a membrane lipid

D. binding of penicillin to a membrane protein

16. Cytoplasmic inclusions include

C. fat globules

D. all of these

17. The cocci which forms a bunch and irregular pattern are

A. Staphylococci

D. Streptococci

18. Chemotaxis is a phenomenon of

A. swimming away of bacteria

B. swimming towards a bacteria

C. swimming away or towards of bacteria in presence of chemical compound

D. none of the above

19. The structure responsible for motility of bacteria is

20. The next to last step in peptidoglycan biosynthesis is

A. synthesis of the NAM-peptide subunit

B. removal of the subunit from bactoprenol

C. linking the sugar of the disaccharide-peptide unit to the growing peptidoglycan chain

D. cross-linking the peptide side chains of peptidoglycan

21. The cocci which forms a chain is

A. Streptococci

C. Staphylococci

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