The acronym RER could stand for a number of different interpretations. One could refer to the rapid transfer system used in France, or it could be rough endoplasmic reticulum in biology. There are even more meanings, so it is usually best not to use acronyms.
Not every relation is a function. But every function is a relation. Function is just a part of relation.
The cubic function.
Range
A formula or graph are two ways to describe a math function. How a math function is described depends on the domain of the function or the complexity of the function.
Protein synthesis is main function of RER in animal cells .
NUCLEAS AND MITOCHONDRIA AND RER/SER
RER A was created in 1977.
That is The Rough Endoplasmic Reticulum in a cell. (RER)
RER B was created in 1977.
RER C was created in 1979.
RER D was created in 1987.
RER E was created in 1999.
It's function is to make proteins. The RER has ribosomes embedded in its' membrane and that is what produces its' rough appearance.
The membrane of the RER contains ribosomes. This is what makes the membrane "rough". The function of the ribosomes is to produce proteins.
Champigny - Paris RER - was created in 1859.
Auber - Paris RER - was created in 1971.