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Hifumi's Study Notes📕Cegep 1BiologyEndoplasmic Reticulum

Endoplasmic Reticulum ​

Tags
Cegep1
Biology
Word count
105 words
Reading time
1 minute

Membrane-bound organelle
Lit. network within cytoplasm
Abbr. ER
Part of the endomembrane system

Continuous with plasma membrane

Types ​

Smooth ​

Abbr. SER
Tubular shape
No ribosome

Functions:

  • Lipid synthesis
  • Carbohydrate metabolism
  • Drug and poison detoxification
  • Ca2+ storage (in muscle cells)

Rough ​

Abbr. RER
Cisternae shape
Has ribosomes on its surface

Functions:

  • Membrane production for the endomembrane system (incl. itself)
  • Synthesis of proteins destined for insertion into the plasma membrane or secretion (by ribosomes)
  • Packages proteins into transport vesicles and sends them to the Golgi apparatus

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