MCQ on Rough Endoplasmic Reticulum




The rough endoplasmic reticulum (RER) is a cellular organelle characterized by its studded appearance due to ribosomes attached to its surface. It plays a vital role in protein synthesis, folding, and transport, contributing significantly to the endomembrane system’s functions within eukaryotic cells. This is an MCQ on Rough Endoplasmic Reticulum Structure and Functions.

|  Cell and Molecular Biology Notes  |  Cell and Molecular Biology PPT  |



1. 
What gives the Rough Endoplasmic Reticulum (Rough ER) its "rough" appearance?

2. 
Which of the following statements is true about the Rough ER?

3. 
What is the main function of the proteins synthesized in the Rough ER?

4. 
The Rough ER is particularly abundant in cells that are actively involved in protein secretion. Which of the following cell types typically contains a high proportion of Rough ER?

5. 
The process of protein synthesis on the Rough ER involves the assembly of amino acids into polypeptide chains. What cellular structure guides this process?

6. 
The newly synthesized proteins in the Rough ER undergo various modifications before being transported to their final destinations. One of these modifications involves the addition of:

7. 
In addition to protein synthesis and modification, the Rough ER is also involved in the formation of:

8. 
Which of the following cellular processes is NOT directly associated with the Rough ER?

9. 
The Rough ER is closely connected to the nuclear envelope, which allows for efficient transport of newly synthesized proteins into the ER lumen. This connection facilitates:

10. 
The Rough ER plays a crucial role in maintaining cellular homeostasis and is responsible for the synthesis of proteins that are integral to the functioning of various cellular organelles and structures. Which of the following is NOT a function of the Rough ER?

11. 
The Rough ER is abundant in cells that actively secrete proteins, such as antibody-producing plasma cells. In these cells, the Rough ER facilitates the synthesis and secretion of antibodies. What is the main class of biomolecules that antibodies belong to?

12. 
The Rough ER is a dynamic organelle that plays a pivotal role in protein synthesis and processing. What cellular structure receives proteins from the Rough ER, further modifies them, and sorts them for delivery to their final destinations?

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