Ribosomes

DR. L.G. LEDUC LLEDUC at NICKEL.LAURENTIAN.CA
Fri Jan 26 23:25:59 EST 1996


Are ribosomes organelles?

It seems that there is a some debate on this topic and I would like to
put my two cents in.

It depends on your definition of an organelle. If you define an
organelle as any membrane-enclosed compartment in a cell, you would have 
to conclude that ribosomes are not organelles.  However, if you use a much 
broader definition such as any structure within the cell which plays an 
important role, you would call ribosomes orgnanelles.  I tend to favor the 
former definition because I believe that the term organelle implies a 
membrane-enclosed compartment.

I do not agree with those who say that procaryotes don't have
membrane-enclosed compartments. Some do although the membrane is not a
phospholipid bilayer. This comment may initiate another debate!


Cheers.

Leo G. Leduc
lleduc at nickel.laurentian.ca




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