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21. The cocci which forms a chain is
A. Streptococci
B. diplococci
C. Staphylococci
D. Tetracocci
22. The arrangement, in which flagella are distributed all around the bacterial cell, is known as
A. monotrichous
B. amphitrichous
C. peritrichous
23. Periplasm is
A. the area between the inner and outer membranes of gram-negative bacteria
B. the area between the inner and outer membranes of Gram-positive bacteria
C. the interior portion of mitochondria
D. the area outside the cell membrane that is influenced by the polymers
24. Which of the following has peptidoglycan as a major constituent of cell wall?
A. Gram-negative bacteria
B. Gram-positive bacteria
C. Fungi
D. None of these
25. The common word for bacteria which are helically curved rods is
A. cooci
B. pleomorphic
C. bacillus
D. spirilla
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