urine is yellow in colour because the kidneys serve two major
functions: they keep the salt content of the blood constant, and
they filter waste out of the bloodstream. So, the main components
of urine are (salt) water and waste products.
The major waste product from cells in the body is ammonia, and the
major waste product from blood is a broken form of heme called
bilirubin. In the liver, each of these is converted into a less
hazardous form: ammonia is converted to urea, and bilirubin is
degraded to urobilins. Salt, water, and urea are all colorless, but
urobilins (which come from degraded pigments) are yellow.
So, if you drink a lot of water, your urine will be more dilute and
clearer, and if you nv drink enough water, your urine will contain
less water and be darker yellow... understand stupid boy?
while urine comes from your bladder, semen comes from your testes.
understand stupid boy?
