Single celled organisms such as bacteria have structures that enable them to carry out life functions and live. Some of these structures are simply called organelles. The following are some of the structures and their function in keeping the unicellular organism alive.
1. Ribosomes
These are structures that are responsible for protein synthesis in the cell.
2. Plasma membrane
It is a selectively permeable barrier allowing nutrients in and waste out and also forms the mechanical boundary of the cell. It is the location of many metabolic processes such as respiration and photosynthesis.
3. Gas vacuole
Gives buoyancy for floating in aquatic environments.
4. Capsules and slime layers
Provide resistance to phagocytosis and helps in adherence to surfaces.
5. Fimbriae and pili
Help in attachment to surfaces, facilitate bacterial mating.
6. Flagella
Helps in movement