Bacteria are prokaryotic cells. Simple in structure, they may have both pili and flagella. The flagella are used for movement, but the pili have many functions: adhesion, reproduction, and movement as well. The flagella and pili are similar in that they are both composed of A) elastin. B) lipids. C) microfibrin. D) proteins.
Biology · High School · Mon Jan 18 2021
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Correct answer is d ( proteins ) .
Bacteria are prokaryotic cells. Simple in structure, they may have both pili and flagella. The flagella are used for movement, but the pili have many functions: adhesion, reproduction, and movement as well. The flagella and pili are similar in that they are both composed of proteins .
Prokaryotes often have appendages (protrusions) on their surface. Flagella and some pili are used for locomotion, fimbriae help the cell stick to a surface, and sex pili are used for DNA exchange.