Endoplasmic Reticulum
& Ribosomes
By: T’keyah
Jonathan
Maria
Endoplasmic Reticulum
Ribosomes
 The endoplasmic reticulum is a eukaryotic
organelle that forms an interconnected
network of tubules and vesicles within cells.
 These structures are responsible for several
specialized functions: protein translation and
the folding and transport of proteins to be
used in the cell membrane.
Endoplasmic Reticulum
Ribosomes
 The surface of the rough endoplasmic
reticulum is studded with proteinmanufacturing ribosomes giving it a "rough"
appearance.
 The RER is not always studded with these
ribosomes, however initially, the RER
appears smooth due to a lack of resident
ribosomes.
Endoplasmic Reticulum
Ribosome’s
 Ribosomes transport to the cytoplasm
through the nuclear envelope.
 Ribosomes are not bound by a membrane
and they are simple structures made of RNA
and protein.
 Ribosomes help to make proteins that
perform tasks within the cytoplasm itself.
Endoplasmic Reticulum
 This is a picture of the
endoplasmic reticulum.
It also shows the rough
endoplasmic reticulum
and the smooth
endoplasmic reticulum.
Ribosomes
 This is a picture of
ribosomes in a cell. It
shows the nuclear
envelope, the nuclear
pore, the Golgi
apparatus and many
other things.
Sources
 www.google.com
 www.wikipedia.org
 www.cellbio.edu