Smooth+ER

Smooth endoplasmic reticulum







The smooth endoplasmic reticulum is a network of vesicles and tubules in the cell. It is found in different types of cells, including animal cells and plant cells.

It increases the surface area of the cell and stores enzymes and products of enzymes. Due to the vesicles and tubules, calcium is pumped throughout the cell.

The smooth endoplasmic reticulum lacks ribosomes, but contains lipids, cell membrane proteins, and receptor attachments.

Sources:

http://www.biology-online.org/dictionary/Smooth_endoplasmic_reticulum http://cellbio.utmb.edu/cellbio/ser.htm http://www.britannica.com/EBchecked/topic/550111/smooth-endoplasmic-reticulum