Cell Structure and Functions - Multiple Choice Questions
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Questions and Answers

Which of the following is a correct statement about unicellular organisms?

  • All unicellular organisms move by cilia.
  • In unicellular organisms, tissues work in co-ordination to perform different functions.
  • Unicellular organisms respire and reproduce. (correct)
  • Unicellular organisms do not require food.
  • Why can the majority of cells not be seen directly with our naked eyes?

  • Cells are grouped into tissues.
  • Cells are present only inside the body.
  • Organisms are generally unicellular.
  • Cells are microscopic. (correct)
  • For an animal cell, the correct combination of terms is:

  • Cell membrane, ribosome, mitochondria, chloroplast
  • Cell membrane, mitochondria, ribosome, chromosome (correct)
  • Cell wall, nucleus, ribosome, chromosome
  • Cell wall, cell membrane, nucleus, plastid
  • Which one of the following is not a part of the nucleus?

    <p>Ribosome</p> Signup and view all the answers

    A suitable term for the various components of cells is:

    <p>Cell organelles</p> Signup and view all the answers

    The jelly-like fluid substance present in cells is called:

    <p>Protoplasm</p> Signup and view all the answers

    Which pair of organisms belongs to the group prokaryotes?

    <p>bacteria and blue-green alga</p> Signup and view all the answers

    Which pair is related to the inheritance of characters?

    <p>chromosome and genes</p> Signup and view all the answers

    Which statement is correct?

    <p>Genes are located in the chromosomes.</p> Signup and view all the answers

    The green color of leaves is due to the presence of the pigment_____

    <p>chlorophyll</p> Signup and view all the answers

    What is the unit of measurement used for expressing the dimension (size) of cells?

    <p>micrometer</p> Signup and view all the answers

    The most important function of cell membrane is that it:

    <p>controls the entry and exit of materials from cells.</p> Signup and view all the answers

    Paheli felt the sensation of heat and reacted due to the action of:

    <p>nerve cells</p> Signup and view all the answers

    Of the following parts of a cell listed below, which part is common to plant cell, animal cell, and bacterial cell?

    <p>cell membrane</p> Signup and view all the answers

    Study Notes

    Characteristics of Cells

    • Unicellular organisms are single-celled organisms
    • Majority of cells cannot be seen directly with our naked eyes because they are microscopic
    • The correct combination of terms for an animal cell is: eukaryotic, multicellular, and membrane-bound organelles

    Cellular Components

    • The nucleus does not have centrioles
    • The suitable term for the various components of cells is organelles
    • The jelly-like fluid substance present in cells is called cytoplasm

    Classification of Organisms

    • The pair of organisms that belongs to the group prokaryotes is bacteria and blue-green algae
    • The pair of organisms related to the inheritance of characters is Gregor Mendel's pea plants

    Cellular Functions

    • The green color of leaves is due to the presence of the pigment chlorophyll
    • The unit of measurement used for expressing the dimension (size) of cells is micrometer (μm)

    Cell Membrane and Nerve Function

    • The most important function of the cell membrane is that it regulates what enters and leaves the cell
    • Paheli felt the sensation of heat and reacted due to the action of thermoreceptors

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    Description

    Test your knowledge of cell structure and functions with this set of multiple choice questions. Explore topics such as unicellular organisms, cell visibility, and cellular functions.

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