Is the endoplasmic reticulum an organelle?

Answer 1

Yes, the rough endoplasmic reticulum produces secretory proteins also known as enzymes.

Secretory proteins means that these proteins are made for secretion or delivery outside the cell and into the body.

Answer 2

It is the Rough Endoplasmic Reticulum that has ribosomes attached to it, hence the name "rough". The smooth endoplasmic reticulum does not contain any ribosomes.
No.

The smooth endoplasmic reticulum (ER) does not have any ribosomes attached to it. That is one of the major differences between the smooth ER and the rough ER which does have attached ribosomes.

Answer 3

The surface of the rough endoplasmic reticulum (RER) is studded with protein-manufacturing ribosomes giving it a "rough" appearance (hence its name). The binding site of the Ribosome on RER is a Glycoprotein receptor called Ribophorin.[2] However, the ribosomes bound to the RER at any one time are not a stable part of this organelle's structure as ribosomes are constantly being bound and released from the membrane. A ribosome binds to the ER only when it begins to synthesize a protein destined for the secretory pathway

Answer 4

Yes it is an organelle .Enodplasmic reticulum (ER) has two parts smooth ER - which do not have the ribosome on it and the rough ER - which has the ribosomes on it

Answer 5

No, they do not.

Answer 6

Yes

Answer 7

the enzyme they contain are its own secretion, with the help of ribosomes in ribosomal ER