The products of the decomposition can diffuse out of the lysosome and into the cytoplasm or be removed from the cell via the process called exocytosis. Lysosomes are membrane bound organelles, that contain an array lytic enzymes. These hydrolytic enzymes digest excess or worn out organelles, food particles and engulfed viruses or bacteria.
Lysosomes are the cell organelles that have hydrolytic enzymes. Phagosomes, the vesicles carrying the large solid particles or undigested materials fuse with lysosomes. The hydrolytic enzymes of lysosomes break down the ingested material. The products of the hydrolysis may be released into the cytoplasm.
Alternatively, exocytosis releases the digested materials out of the cells. A secretory vesicle is formed inside the cell that fuses with the plasma membrane and releases its content outside the cell.
The Respiratory system allows entry of oxygen into the body and release Carbon Dioxide. The Oxygen travels across lung tissue into blood vessels and the blood carries the oxygen around the body. Thus the Respiratory and Circulatory system work together in gas exchange which is vital in Homeostasis