Cellular respiration role during water cycle

Explanation:

Our breath being absorbed by the atmosphere and dumped back down in the form of rain or snow is one of them. Respiration is the most important metabolic process for animals that can't make their own energy. It allows organisms to gather oxygen from the air in exchange for carbon dioxide and water vapor .

If you look at a picture of a cell membrane (http://apbiomaedahs.weebly.com/uploads/1/8/4/0/18405139/593679327_orig.jpg?510)
you'll see that there are 2 layers (bi- means 2) of the yellow things (the round heads are hydrophilic and the tails are hydrophobic and face each other), hence the name lipid bilayer