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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.

Mitochondrion

  It contains chromatin fibres, which are made up of DNA (Deoxyribonucleic acid). After cell division takes place, these chromatin fibres undergo certain structural changes, and are called chromosomes. These chromosomes carry the hereditary information of the genes.

  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 a plastid, containing pigments such as xanthophyll (yellow in color) and carotene (orangish-red in color). These pigments impart color to flowers and fruits of plants.

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

  Half-n-half Clue
 

2.

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

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

  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.

  Half-n-half Clue
 

3.

Vacuole

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

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

  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      

4.

Nucleoplasm

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

  It contains chromatin fibres, which are made up of DNA (Deoxyribonucleic acid). After cell division takes place, these chromatin fibres undergo certain structural changes, and are called chromosomes. These chromosomes carry the hereditary information of the genes.

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

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

  Half-n-half Clue
 

5.

Ribosome

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

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

  Half-n-half Clue
 

6.

Centrosome

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

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

  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.

  Half-n-half Clue
 

7.

Nucleolus

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

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

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

  Half-n-half Clue
 


 
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