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Cell - The Unit of Life Test - 3

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Cell - The Unit of Life Test - 3
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Weekly Quiz Competition
  • Question 1
    4 / -1

    New cells generate from

    Solution

    All living organisms are composed of cells and products of cells.all cells arise from pre-existing cells.

  • Question 2
    4 / -1

    The rod shaped bacteria is called as

    Solution

    The shapes of bacteria are bacillus (rod like), coccus (spherical), vibrio (comma shaped) and spirillum (spiral).

  • Question 3
    4 / -1

    The inner membrane of mitochondria thrown into folds to form finger like structure is called

    Solution

    Mitochondria are double membranous structure. The inner membrane of mitochondria thrown into folds to form finger-like structureis called cristae.

  • Question 4
    4 / -1

    Who was the first to explain that cells divide?

    Solution

    Rudolf Virchow(1855) first explained that cells divided and new cells are formed .

  • Question 5
    4 / -1

    Ribosome are granules formed of

    Solution

    Ribosomes are granules formed of rRNA and protein. Ribosome provide space for protein synthesis during translation.

  • Question 6
    4 / -1

    Who first saw and described a live cell?

    Solution

    Anton Von Leeuwenhoek first saw and described a live cell.

  • Question 7
    4 / -1

    In prokaryotes, the reserved food material is stored in

    Solution

    Reserve material in prokaryotic cells are stored in the cytoplasm in the form of inclusion bodies.

  • Question 8
    4 / -1

    The staining procedure is developed by

    Solution

    The staining procedure developed by Gram viz., those that take up the gram stain are gram positiveand the others that do not are called gram negative bacteria.

  • Question 9
    4 / -1

    Which of the following statements with reference to cytoskeleton is not correct?

    Solution

    The cytoskeleton in a cell is involved in functions like mechanical support, motility, maintenance of the shape of the cell.

  • Question 10
    4 / -1

    A clear zone around Golgi apparatus is zone of

    Solution

    The clear zone surrounding Golgi apparatus is zone of exclusion, where no other cellular activity takes place.

  • Question 11
    4 / -1

    Cytoskeleton is made of

    Solution

    The cytoskeleton of a cell is made up of microtubules, actin filaments,and intermediate filaments. These structures give the cell its shape and help organize the cell’s parts. They also provide a basis for movement and cell division

  • Question 12
    4 / -1

    Tubulin occurs in

    Solution

    Tubulin is a protein superfamily of globular proteins, or one of the member proteins of that superfamily. Microtubules are tubular cytoskeletal elements polymerized from alpha and beta tubulin heterodimers. The doublet microtubule is a microtubule from uniquely seen in flagella and cilia.

  • Question 13
    4 / -1

    SER differ from RER in

    Solution

    Smooth endoplasmic reticulum (SER) differ from rough endoplasmic reticulum (RER) in absence of ribosome on the surface of endoplasmic reticulum.

  • Question 14
    4 / -1

    The organelle involved in respiration is

    Solution

    Mitochondria are the sites of aerobic respiration. They producecellular energy in the form of ATP

  • Question 15
    4 / -1

    Largest organelles in cell is

    Solution

    Mitochondria is the largest cell organelles in animal cell and chloroplast is the largest cell organelles in plant cell.

  • Question 16
    4 / -1

    Select the incorrect matching

    Solution

    Mitochondria contain cristae, finger like projection of inner layer, thylakoid is present in chloroplast and lysosome is a digestive enzyme but RNA is absent in Chromosome.

  • Question 17
    4 / -1

    Arrangement ofciliary microtubules is

    Solution

    Cilia present in prokaryotic organisms consist of microtubules. These microtubules are arranged in 9+2 order in which 2 forms the center and 9 are arranged at periphery.

  • Question 18
    4 / -1

    Golgi apparatus are the site for formation of

    Solution

    Golgi apparatus is the important site of formation of glycoproteins and glycolipids.

  • Question 19
    4 / -1

    Cell organelles with single membrane is

    Solution

    Lysosomes are single membrane structures containing enzymes for digestion of all types of macromolecules.

  • Question 20
    4 / -1

    A cell membrane shows fluid behavior due to

    Solution

    A cell membrane shows fluid behavior due to mosaic of lipid and proteins. Fluid mosaic model of plasma membrane is most accepted and recent model.

  • Question 21
    4 / -1

    Which is common in plant and animal cells

    Solution

    Mitochondria are present in both plant as well as animal cells. Plastids and central vacuoles are present in plant cells and centrioles are present in only animal cells.

  • Question 22
    4 / -1

    Which does not occur in cell membrane?

    Solution

    The cell membrane is made up of lipid bilayer which has different components like phospholipids, glycolipids and cholesterol. Proline is an alpha amino acid used in protein synthesis and is a major constituent of collagen.

  • Question 23
    4 / -1

    Elaioplasts belongs to

    Solution

    The leucoplasts are the colourless plastids of varied shapes and sizes with stored nutrients. Leucoplast includes: a) Amyloplasts storing carbohydrates. b) Elaioplastsstoring oils and fats and c) Aleuroplasts storing proteins.

  • Question 24
    4 / -1

    The site for the light reactions is

    Solution

    In plant cells, the chloroplasts are responsible for trapping light energy essential for photosynthesis. The grana, in the plastid, is the site of light reactions.

  • Question 25
    4 / -1

    Structural element of chromatin is

    Solution

    Chromatin is the thread like structure present in the nucleus. Chromatin have beads like structure called nucleosome that contain histone protein and DNA.

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