Cytoplasm


 
 
Concept Explanation
 

Cytoplasm

  •  It is a transparent, jelly-like fluid that fills up the part of the cell between the cell membrane and the nucleus. Under compound microscope it appears to be colourless.
  • The protoplasm which surrounds the nucleus is called 'cytoplasm'. It is formed of proteins, nucleic acids, carbohydrates, lipids and certain inorganic substances.
  • Many small organelles are found inside the cytoplasm. These are known as cytoplasmic organelles.
  • These organelles are the sites for various metabolic functions of the cell. Several structures called organelles are embedded in the cytoplasm.
  • These are Mitochondria, Golgi bodies, Ribosomes, Endoplasmic reticulum, etc. These are called cell organelles.
  • All the chemical reactions of cell occur in the cytoplasm.
  • There are many small cytoplasmic bodies suspended in the cytoplasm.
  • Functions of Cytoplasm:-

  • It holds cells organelle in place.
  • It gives shape to the cell.
  • Most of the chemical reactions takes place in the cytoplasm.
  • It helps in the exchange of material between cell organelle.
  • It acts as a storehouse of vital molecules such as amino acids, glucose, vitamin, iron etc.
  • It acts as the site for certain metabolic pathways such as glycolysis. Glycolysis is the first step in the breakdown of glucose to extract energy for cellular metabolism.
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    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following are correct ?

    (a) Cytoplasm s a transparent, jelly-like fluid that fills up the part of the cell between the cell membrane and the nucleus.

    (b) The mitochondria, golgi bodies, ribosomes, endoplasmic reticulum, etc are called cell organelles.

    (c) Most of the chemical reactions takes place in the cytoplasm .

    Right Option : D
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    Explanation
    Question : 2

    _______________ serves as a fluid in which various cell organelles are embedded.

    Right Option : A
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    Explanation
    Question : 3

    Part of cell between plasma membrane and nucleus is ____________________

    Right Option : C
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    Explanation
     
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