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Cell The Unit of Life Test - 11

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Cell The Unit of Life Test - 11
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Weekly Quiz Competition
  • Question 1
    1 / -0

    A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is

    Solution

    Absence of nucleus gives erythrocytes maximum space to accommodate haemoglobin. Lack of cell organelles in sieve tube cells enables them to occupy minimum space.

  • Question 2
    1 / -0

    Select one which is not true for ribosome

    Solution

    Ribosome are responsible for protein synthesis.

  • Question 3
    1 / -0

    Which one of these is not a eukaryote?

    Solution

    Anabena belongs to monera and is a prokaryote.

  • Question 4
    1 / -0

    Which of the following stains is not used for staining chromosomes?

    Solution

    Other stains in the option are used for staining chromosomes or nucleus whereas safranin is generally used as counter stain in gram staining.

  • Question 5
    1 / -0

    Different cells have different sizes. Arrange the following cells in an ascending order of their size. Choose the correct option among the followings

    i. Mycoplasma

    ii. Ostrich eggs

    iii. Human RBC

    iv. Bacteria

    Solution

    Mycoplasma is the smallest cell and are 0.3 micron in length. Ostrich egg is the largest living cell and is very big. RBCs are 7 micron in diameter. Bacteria are 3 to 5 micron in diameter.

  • Question 6
    1 / -0

    Which of the following features is common to prokaryotes and many eukaryotes?

    Solution

    Nuclear membrane and membrane bound organelles are absent in prokayrotes. Cell wall is absent in many eukaryotes.

  • Question 7
    1 / -0

    Who proposed the fluid mosaic model of plasma membrane?

    Solution

    Camillo Golgi discovered the Golgi Complex, Schleiden and Schwann proposed cell theory and Robert Brown was the first to describe nucleus.

  • Question 8
    1 / -0

    Which of the following statements is true for a secretory cell?

    Solution

    Cells actively involved in protein synthesis and secretion have extensive and continuous RER within the outer membrane of nucleus.

  • Question 9
    1 / -0

    What is a tonoplast?

  • Question 10
    1 / -0

    Which of the following is not true of a eukaryotic cell?

    Solution

    In eukaryotic cell, cellulose makes the cell wall.

  • Question 11
    1 / -0

    Which of the following statements is not true for plasma membrane?

    Solution

    Plasma membrane is made up of lipid bilayer with protein integrated in the bilayer. Carbohydrate is also present in plasma membrane.

  • Question 12
    1 / -0

    Plastid differs from mitochondria on the basis of one of the following features. Mark the right answer

    Solution

    Two layers of membrane, ribosome and DNA are present in both plastid and mitochondria.

  • Question 13
    1 / -0

    Which of the following is not a function of cytoskeleton in a cell?

    Solution

    Cytoskeleton is present inside the cell and hence cannot provide intracellular transport.

  • Question 14
    1 / -0

    The stain used to visualise mitochondria is

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