MCQ on Ribosome Structure and Functions

Ribosomes are cellular structures essential for protein synthesis. Composed of RNA and proteins, they read genetic instructions from mRNA and assemble amino acids into polypeptide chains. Found in both prokaryotic and eukaryotic cells, ribosomes play a crucial role in the translation of genetic information into proteins. This is an MCQ on Ribosomes – Structure and Functions.

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

1. 
What is the primary function of ribosomes in the cell?

2. 
Ribosomes are composed of two subunits, small and large, which are primarily made up of:

3. 
The ribosome's small subunit is responsible for:

4. 
The site where amino acids are brought to the ribosome during protein synthesis is called the:

5. 
Which cellular component is responsible for delivering amino acids to the ribosome during protein synthesis?

6. 
The process of protein synthesis at the ribosome involves the decoding of the genetic information carried by:

7. 
Ribosomes are found in both prokaryotic and eukaryotic cells. In which cellular location do prokaryotic ribosomes primarily reside?

8. 
In eukaryotic cells, ribosomes can be found in the cytoplasm as well as:

9. 
Ribosomes play a critical role in the production of enzymes, structural proteins, and other essential cellular components. Which step in protein synthesis takes place in the ribosome?

10. 
Which cellular structure houses the genes that code for ribosomal RNA (rRNA) and the assembly of ribosomes?

11. 
The ribosomal RNA (rRNA) molecules present in ribosomes are transcribed from genes located in the nucleolus and assembled with ribosomal proteins to form functional ribosomes. Which type of RNA makes up the majority of the ribosome's structure?

12. 
Ribosomes are found in all living cells and are critical for the synthesis of proteins, which are essential for various cellular functions. What is the approximate size of a ribosome in nanometers (nm)?

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MCQ on Ribosomes

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