NEET BIOLOGY

Detailed explanation-1: -Gram-negative bacteria, as well as some Gram-positive bacteria, possess hair-like appendages known as fimbriae, which play an important role in adhesion of the bacteria to surfaces or to other bacteria.

Detailed explanation-2: -Fimbriae are finger-like projections on the ends of your fallopian tubes closest to your ovaries. Each month, your fimbriae catch the egg that one of your ovaries releases during ovulation. Your fimbriae then sweep the egg (ovum) into the fallopian tube where the egg can be fertilized.

Detailed explanation-3: -Fimbriae and pili are extensions of the cytoplasmic membrane and are made up of an oligomeric protein known as pilin. They are hair-like appendages present on the bacterial cell wall similar to flagella. They are involved in bacterial conjugation, attachment to the surface and motility.

Detailed explanation-4: -Fimbriae are used by bacteria to adhere to one another and to adhere to animal cells and some inanimate objects. A bacterium can have as many as 1, 000 fimbriae. Fimbriae are only visible with the use of an electron microscope.