Question

What are smooth endoplasmic recticulum and rough endoplasmic recticulum?

Answer 1

SMOOTH ENDOPLASMIC RETCULUM-
MADE UP OF TUBULES.
RIBOSOMES ARE ABSENT.
ROUGH ENDOPLASMIC RETICULUM-
MADE UP OF CISTERNAE.
CONTAINS RIBOSOMES.

Answer 2

Endoplasmic reticulum is an interconnected system of membrane bound channels in the cytoplasm. It is present in almost all eukaryotic cells and absent in prokaryotic cells and RBC.

rough endoplastic recticulum
RER possesses ribosomes attached to its membranes.it is mainly formed of cisternae and a few tubules.
The reticulum takes part in the synthesis of proteins and enzymes.It helps in the formation of lysosomes through the agency of Golgi apparatus.RER possesses narrow pores below its ribosomes for the passage of synthesized polypeptides into RER channels.



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