By respiratory system we usually mean the passages that transport incoming air to the lungs and to the microscopic air sacs called alveoli where gases are exchanged. The term respiration refers to the whole chain of processes from the inhalation of air to the use of oxygen in the cells. Index. Reference.
Phagocytes are the white blood cells that protect the body by eating (phagocytosing) dirt, bacteria and dead or dying cells. They are important for fighting infections. They are also important for becoming immune. Phagocytes are important in all animals and are very complex in vertebrates.
The function of the cell membrane is to let particles in and out of the cell. If they are to big then they need to go through channel proteins. If not they can go through the cell membrane itself and in to the rest of the plant cell as a whole.function of a nucleus is that it stores the cells DNA (hâ¦.Popularity: 165.he function of the cell membrane is to let particles in and out of the cell. If they are to big then they need to go through channel proteins. If not they can go through the cell membrane itself and in to the rest of the plant cell as a whole.function of a nucleus is that it stores the cells DNA (hâ¦.