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The Fundamental Unit of Life Test - 36

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The Fundamental Unit of Life Test - 36
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  • Question 1
    1 / -0
    Which component of a plant cell gives it rigidity and shape?
    Solution
    • The cell wall is an additional covering over the cell membrane in plant, bacteria, and fungi cells. It gives shape and rigidity to the cells. Cell wall being dead, provides mechanical support. Cell wall is absent in animal cells.
    • Cell membrane functions as a mechanical barrier and helps in transporting substances.
    • Nucleus is a small spherical mass located in the cytoplasm of the cell. It regulates and coordinates different activities of the cell.
    So, the correct option is A.
  • Question 2
    1 / -0
    The smallest cell is a _____________ measured between 0.1 to 0.5 micrometre in size.
    Solution
    Virus is not a cell but a particle. RBC and Fungal cells are eukaryotic cells with cell sizes between 6-10 micrometer.
    Bacteria is the smallest measured cell ranging between 0.5 to 5.0 micrometre.
    The correct option is D.

  • Question 3
    1 / -0
    Which of the following is a single cell in the human body that can change its shape?
    Solution
    White blood cells in the human body can change their shape just like an amoeba.
    The correct option is A.
  • Question 4
    1 / -0
     How does pseudopodium benefit amoeba?
    Solution
     

    A pseudopod or pseudopodium is a temporary arm-like projection of a cell membrane in amoebas that is developed in the direction of movement.

    The formation of cytoplasmic projections, or pseudopodia, on the forward edge of the cell, pulling the cell along, is characteristic of the microscopic unicellular protozoans known as amoebas.

    It facilitates movement and helps in capturing food.

    So, the correct option is c.

  • Question 5
    1 / -0
    Each organ in the digestive system performs different functions such as
    Solution
    Different organs in the digestive system have different functions like digestion, assimilation and absorption and together form the digestive system.
    The correct option is D.
  • Question 6
    1 / -0
    What is the white part of an egg called?
    Solution




    In an egg, the white material is albumin which
    solidifies on boiling while the yellow part
    is yolk.

    The correct option is A.
  • Question 7
    1 / -0
    The general structure of cells observed is/are
    Solution
    The structure of cells is generally observed to be round, spherical or elongated.
    The correct option is D.
  • Question 8
    1 / -0
    Fill in the blank:
    The ______ in a living organism is the basic structural unit.
    Solution
    The cell is the basic structural unit of life.
    The correct option is A.
  • Question 9
    1 / -0
    Which of the following cells are elongated and branched?
    Solution
    Nerve cells are elongated and branched for receiving and transferring messages helping to control and coordinate the working of different parts of the body.
    The correct option is C.
  • Question 10
    1 / -0
    Fill in the blank:
    A tissue is a group of _________ cells performing a specific function.
    Solution
    A tissue is a group of the similar or same type of cells that together perform a specific function.
    The correct option is A.
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