Why is respiration needed?

Answer 1

respiration: the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs.

Answer 2

In animals, respiration is needed to bring oxygen into the body, and to get rid of the waste products of cellular respiration - mainly carbon dioxide In plants, respiration brings in CO2 and gets rid of oxygen Cellular respiration is the means by which living things produce energy

Answer 3

Basically, cellular respiration is the overarching process (several processes are involved) by which our cells utilize atmospheric oxygen for various other compounds, mainly ATP (energy).

To go into more detail, the main use for oxygen in humans is at the mitochondrial level during oxydative phosphorylation (OP). This process is how we produce the majority of our energy in the form of ATP from ADP. ADP, or Adenosine di-phosphate, is the expended energy source and is phosphorylated (a phosphate group added) during OP, thereby producing ATP (Adenosine Tri-phosphate). This is a useful source of energy because this phosphate group can be stripped off during active transport and is useful in SEVERAL physiological functions.

Hope this helps!

Answer 4

Cellular respiration is the process by which cells produce ATP for energy. Also, cellular respiration is much more efficient than fermentation, the process by which single celled organisms. (Cellular respiration produces 18 times more ATP than fermentation) Essentially, without cellular respiration is what keeps the cells in your body functioning.

Answer 5

Cellular respiration is needed to turn carbohydrates, starches, sugar, and probably some more to energy so you can live.