Protista


 
 
Concept Explanation
 

Protista

The members of this kingdom are mostly unicellular and eukaryotic. They are usually found in aquatic habitats. Some protists have hairlike cilia or whiplike flagella for their movements.

  • They have different modes of nutrition.
  • Some members are autotrophic (can synthesize their own food), e.g., unicellular algae like Euglena also known as the biology puzzle, while others are heterotrophic (dependent on others for food).
  • Heterotrophic members may be saprophytic (living on dead matter) or parasitic (living on other organisms).
  • On the basis of their modes of nutrition, the protists are grouped as photosynthetic algae (e.g., diatoms), decomposers (e.g., slime moulds), and predators (e.g., protozoans). Protozoans of the genus Amoeba use pseudopodia, or cytoplasmic extensions, for locomotion and ingestion of food.
  •                                                   

    Example:  Diatoms, Euglena, Ameoba. Paramecium etc.

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

    Which of the following protist is photosynthetic algae?

    Right Option : A
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    Explanation
    Question : 2

    Paramecium has _______________________ for locomotion.

    Right Option : D
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    Explanation
    Question : 3

    One of the following kingdom includes many kinds of uniceller eukaryotic organisms

    Right Option : B
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    Explanation
     
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