Unicellular organisms typically respires faster to release energy.
Respiration is a gaseous exchange between cells and the environment. Here, oxygen is taken in by the cell and carbon dioxide is the by product of the metabolic process.
Unicellular organisms will respire faster because they are at the lowest level of organisation.
The cells are in direct contact with the environment.
They do not require special set up to obtain and circulate oxygen in them.
The waste of the metabolic process is also discarded easily and very fast.
Organisms at lower levels of organisation typically have a faster rate of respiration.
Animals derive energy by eating plants or animals and using cellular respiration to make ATP. Plants capture energy from the sun via photosynthesis and make sugar and oxygen. They can then use the sugar to perform cellular respiration to derive energy.
