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Match the cell structures in Group I with the organismsin Group II.
Group I
P.Endospores
Q.Bipolar flagella
R.Pseudomurine in cell wall
S.Periplasmic flagella
Group II
1. Methanobacterium
2. Treponema
3. Spirillum
4. Clostridium
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- P-4, Q-3, R-1, S-2
- P-4, Q-3, R-2, S-1
- P-3, Q-4, R-1, S-2
- P-4, Q-1, R-3, S-2
Correct Option: A
Clostridium is a genus of Gram-positive bacteria, belonging to the Firmicutes. They are obligate anaerobes capable of producing endospores. Spirillum is genus of spiral-shaped bacteria of the family Spirillaceae. Spirillum is microbiologically characterized as a gram-negative, motile helical cell with tufts of whiplike flagella at each end. Treponemes are helically coiled, corkscrew-shaped cells, 6 to 15 µm long and 0.1 to 0.2 µm wide. They have an outer membrane which surrounds the periplasmic flagella, a peptidoglycan-cytoplasmic membrane complex, and a protoplasmic cylinder. Multiplication is by binary transverse fission. Methanobacteria are methane producing microorganisms (methanogens) and have pseudomurine in their cell wall.