Question

13) Which of the following organelle has a continuous connection with nuclear membrane
a) Golgi apparatus b) Lysosome c) RER d) SER
14) In RER riboson​

Answer 1

The answer is C)RER (Rough endoplasmic reticulum).

Explanation:

• Rough endoplasmic reticulum bearing ribosomes on its surface.
• It gives a rough granular appearance under the electron microscope. They are extensive and continuous with the outer membrane of the nucleus.
• RER contains two types of glycoproteins for the attachment of 60S subunit of 80S ribosome.
• Function:-
• a) Ribosomes are the site of protein synthesis and thus, RER is present in the cells which are actively involved in the protein synthesis and secretion.
• b) It provides precursors of enzymes for the formation of lysosomes in the Golgi complex.
• c) It gives rise to SER.