The Latin verb supponere, meaning substitute, has several legitimate heirs in English, including supposititious (which dates from the early 17th century) and supposition (a 15th century addition).
Cellular respiration takes place in the organelles called mitochondria. The mitochondria take in glucose, a type of sugar, and change it in the presence of oxygen into an energy-rich molecule called ATP, or adenosine triphosphate. For every molecule of glucose, 36 molecules of ATP are made.
Mitochondria are the site of cellular respiration, which is responsible for creating energy in a form that the cell can use (ATP). Therefore a cell that needs lots of energy â¦ , such as a muscle cell (that has a lot of work to do), will need more mitochondria.