protein as energy

MS LOUISE D BURTON (XXDU78A@prodigy.com)
Thu, 28 Nov 1996 20:14:12, -0500

Most creatures are able to basically break off the NH2 off of an amino
acid (the building blocks of protein) which makes the molecule similar to a
lipid(fat) and available for energy. Lipids have more energy available
than Carbohydrates because of their bonds within the molecule. (Energy is
stored in bonds). The excess nitrogen is filtered out of the blood by the
kidney. Therefore, in something that is eating a lot of protein, you will
find the excess nitrogen in the urine. Excess protein can cause the kidney
to work too hard, as you can see.
In cellular respiration, the molecule used to make energy is GLUCOSE, which
is a monomer of a carbohydrate. How the food gets to glucose...well that
basically has to do with enzmyes!
Hope this helps, and please correct this if any of you can make it any clearer!
Louise Burton (HS Biology teacher)
FA AL BADI+
MS BERET
OK