Choose the correct answers from the alternatives given. Surface appendages used by -bacteria to attach to one another and to host organisms are called:
A
thylakoids
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B
mesosomes
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C
pili
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D
spirilla
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Solution
The correct option is C pili
A pilus is a thin, rigid fiber made of protein that protrudes from the cell surface. The primary function of pili is to attach a bacterial cell to specific surfaces or to other cells. So, the correct option is 'pili'.