sex pillus in F+ bacteria is used to transform naturally other bacteria. This sex pillus can trasfert the F plasmid.

In bacterial Cells these are known as Pilli - singular as a pillus.

They transfer [short, Dna] plasmids from Cell to Cell via a spike-shaped cytoplasmic extension known as a pillus (plural = pilli). Naturally, these pilli have a place of attachment.

Pillus (plural form is pilli), usually Type IV pilli, are used in conjugation to transfer plasmids from one bacteria to another. Other pilli are used for adhesive purposes like you said.

It depends on the bacteria. Most bacteria don't have chloroplasts, though there is a class of bacteria (cyanobacteria) that do have chloroplasts.

Plant cells also have a large central vacuole, whereas most bacteria do not (there are a few exceptions). Plants also have a different type of cell wall than bacteria. Plant cell walls are made of cellulose, and bacterial cell walls are made of a substance called peptidoglycan.

Basically, there are a few exceptions to every "rule" defining what a type of cell has what. It's not always so cut-and-dried.