Question

Question #4645d

Answer 1

Fimbriae and pili are both filaments that grow out of a bacterial cell, but there are many differences as well.

Explanation:

Here are some major differences:

FIMBRIAE . . . . . . . . . . . . . . . . . PILI
Similar to bristles . . . . . . . Similar to hairs
Shorter than pili . . . . . . . . Longer than fimbriae
200 - 400 per cell . . . . . . 0 - 10 per cell
Gram + and Gram⎯ . . . . . Gram⎯ only

Here is a diagram showing a bacterial cell with fimbriae and pili

http://www.microbiologynotes.com/differences-between-fimbriae-and-pili/

Here is the rest of that helpful website, which lists many more differences:
http://www.microbiologynotes.com/differences-between-fimbriae-and-pili/