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Biology : Plant & Animal Cells III (Parts & Functions)


Given the PLANT / ANIMAL
CELL PART, identify the DESCRIPTION

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1.

Lysosome

  It is a plastid, containing a pigment called chlorophyll. This chlorophyll captures energy from sunlight and helps in the manufacture of food by the process of photosynthesis.

  It is the house of all metabolic activities and functions in the cell. In other words, it contains most of the cell organelles, each of which perform a specific function.

  It performs intracellular digestion. It also helps in destroying foreign substances.

  It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.

  Half-n-half Clue
 

2.

Centrosome

  It is semi-permeable, allowing substances to enter and leave the nucleus of the cell. It also provides protection to the nucleus of the cell.

  It provides shape to the cell. It is semi-permeable, regulating the entry and exit of substances, namely solutes and ions.

  It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.

  It synthesizes and secretes certain substances, namely hormones and enzymes. It also helps in the formation of acrosome of sperm.

  Half-n-half Clue
 

3.

Leucoplast

  It provides protection, shape and rigidity to the cell. It is freely permeable, allowing substances in the form of solutions to enter and leave the cell without any hindrance.

  It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.

  It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.

  It is a plastid. It helps in the storage of starch.

  Half-n-half Clue
 

4.

Chloroplast

  It synthesizes and secretes certain substances, namely hormones and enzymes. It also helps in the formation of acrosome of sperm.

  It controls and coordinates all the activities and functions of the cell. It plays a vital role in cell division.

  It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.

  It is a plastid, containing a pigment called chlorophyll. This chlorophyll captures energy from sunlight and helps in the manufacture of food by the process of photosynthesis.

 
Hint      

5.

Mitochondrion

  It performs intracellular digestion. It also helps in destroying foreign substances.

  It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.

  It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.

  It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.

  Half-n-half Clue
 

6.

Nucleus

  It controls and coordinates all the activities and functions of the cell. It plays a vital role in cell division.

  It performs intracellular digestion. It also helps in destroying foreign substances.

  It synthesizes and secretes certain substances, namely hormones and enzymes. It also helps in the formation of acrosome of sperm.

  It helps in the storage of water and several other substances, namely food, waste products and pigments. It also provides turgidity to the cell.

 
Hint      

7.

Nuclear Membrane

  It provides protection, shape and rigidity to the cell. It is freely permeable, allowing substances in the form of solutions to enter and leave the cell without any hindrance.

  It is semi-permeable, allowing substances to enter and leave the nucleus of the cell. It also provides protection to the nucleus of the cell.

  It is known as the 'site of protein synthesis in the cell', and synthesizes proteins. It is chiefly composed of RNA (Ribonucleic acid).

  It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.

  Half-n-half Clue
 


 
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