The cell membrane surrounds the cytoplasm of a cell and physically separates the internal parts of the cell from the external environment. The membrane is also the gatekeeper, controlling what comes into and goes out of the cell.
Answer: The flagella are like legs . The pili are like DD2 arms and legs . The cell wall is like the skeletal system. The ribosomes are like carpenter. The nucleoid is like the brain. The cell membrane is like skin. The cytoplasm is like blood.
