Ribosomes


 
 
Concept Explanation
 

Ribosomes

Ribosomes are non - membranous, extremely small, round bodies found either in the free state in the cytoplasm or attached to the surface of the ER. They are composed of ribonucleoprotein. (ribonucleic acid and protein).

 A ribosome is a cellular particle made of RNA and protein that serves as the site for protein synthesis in the cell. The ribosome reads the sequence of the messenger RNA (mRNA) and, using the genetic code, translates the sequence of RNA bases into a sequence of amino acids.

Functions of Ribosomes:-

  • The main function of ribosome’s is to act as a platform or work place for the synthesis of proteins. Hence they are called "Protein Factory".
  • Ribosomes are composed of about equal amounts of RNA (ribonucleic acid), and proteins. 
  •                                                                      

    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Proteins are produced in the __________________

    Right Option : D
    View Explanation
    Explanation
    Question : 2

    Which of these options are not a function of Ribosomes?

    (i) It helps in the manufacture of protein molecules.

    (ii) It helps in the manufacture of enzymes.

    (iii) It helps in the manufacture of hormones.

    (iv) It helps in the manufacture of starch molecules.

    Right Option : C
    View Explanation
    Explanation
    Question : 3

    The only cell organelle seen in prokaryotic cell is ________________

    Right Option : B
    View Explanation
    Explanation
     
    Video Link - Have a look !!!
     
    Language - English
     
     
     
    Related Videos
    Language - English
    Language - English
    Language - English

    Language - English
    Language - English

    Language - English
    Language - English
    Language - English

    Language - English
    Language - English
    Language - English



    Students / Parents Reviews [10]