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11th Standard Botany - Cell - The Unit of Life English Medium Free Online Test One Mark Questions with Answer Key 2020 - 2021

11th Standard

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Botany

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. Sequences of which of the following is used to know the phylogeny

    (a)

    mRNA

    (b)

    rRNA

    (c)

    tRNA

    (d)

    Hn RNA

  2. Keeping in view the fluid mosaic model for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipid and proteins from one lipid monolayer to the other

    (a)

    Neither lipid nor proteins can flip-flop

    (b)

    Both lipid and proteins can flip flop

    (c)

    While lipids can rarely flip-flop proteins cannot

    (d)

    While proteins can flip-flop lipids cannot

  3. The term animalcules was used by______.

    (a)

    Pasteur

    (b)

    Dutrochet

    (c)

    Leeuwenhoek

    (d)

    Robert Hooke

  4. _________ provides 3 dimensional images of surface of microscopic objects.

    (a)

    TEM

    (b)

    SEM

    (c)

    Phase Contrast microscope

    (d)

    Dark field microscope

  5. Endoplasmic reticulum and golgi are involved in the formation of_____.

    (a)

    centrioles

    (b)

    peroxisomes and centrioles

    (c)

    centrioles and basal body

    (d)

    lysosomes

  6. Digestion of cell organelles by the cell is called_____

    (a)

    Phagocytosis

    (b)

    Pinocytosis

    (c)

    Autophagy

    (d)

    Autolysis

  7. Who gave the term 'Chromosome'?

    (a)

    Balbiani

    (b)

    Robert Hooke

    (c)

    Waldeyer

    (d)

    Aristotle

  8. Who proposed the cell theory_________.

    (a)

    Singer and Nicholsen

    (b)

    Schwann and Schleiden

    (c)

    Hook and Brown

    (d)

    Robertson

  9. In mitochondria, F1-particles are found in_____

    (a)

    Matrix

    (b)

    Cristae

    (c)

    Outer layer

    (d)

    All the above

  10. In human which cell lacks nucleus.

    (a)

    RBC

    (b)

    Lymphocyte

    (c)

    Monocytes

    (d)

    Neutrophils

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