Answer :
You
would know that a cell under microscope is prokaryote because it lacks nucleus
cells. Prokaryote is a single celled organism. It’s cell structure is composed
of flagellum, cell membrane, cell wall, cytoplasm, ribosome, nucleoid, and
glycocalyx. Flagellum’s function is to aid cellular locomotion but is only for
selected types of prokaryotes. Cell wall covers the outer part to protect the
bacteria cells. Nucleid is the area that contains the DNA of the bacteria. Cell
membrane regulates the flow of the substances in and out of the cell. Cytoplasm
contains salts and other organic molecules. Ribosomes is responsible of protein
production.