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Cell Biology Test - 12

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Cell Biology Test - 12
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Highly folded plasma membrane which gathers light in bacteria like green sulfur bacteria is referred to as

    Solution

    A chlorosome is a highly folded plasma membrane that gathers light in bacteria like green sulfur bacteria. Chlorosomes are composed mostly of bacteriochlorophyll.

  • Question 2
    1 / -0

    Endomembrane system of the eukaryotes has originated from the

    Solution

    The endomembrane system is evolved from outer membrane vesicles of the endosymbiotic mitochondrion.

  • Question 3
    1 / -0

    Obsolete organelles of a cell are recycled in a process called autophagy by

    Solution

    Cell's obsolete organelles are recycled in a process called autophagy by lysosomes. The lysosomes are the storehouse of several hydrolytic enzymes that cause autophagocytosis of cell's obsolete organelles.

  • Question 4
    1 / -0

    Which of the following events takes place at transitional endoplasmic reticulum?

    Solution

    Secretory proteins depart from the ER enfolded in the membranes of vesicles that bud like bubbles from the transitional endoplasmic reticulum.

  • Question 5
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    Which of the following RNAs is contained in the 40S subunit of eukaryotic ribosome?

    Solution

    Eukaryotic ribosomes 40S subunit contains 18S RNA which has 1900 nucleotides and 33 proteins.

  • Question 6
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    Which of the intermediate filament proteins is/are structural component(s) of the sarcomeres in muscle cells?

    Solution

    Desmin interfilaments are structural components of the sarcomeres in muscle cells.

  • Question 7
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    Which of the following cytoskeletal proteins serve(s) as a localised attachment site for other proteins, and prevents the diffusion of certain molecules from one cell compartment to another?
    Solution

    Septins serve as a localised attachment site for other proteins, and prevents the diffusion of certain molecules from one cell compartment to another.

  • Question 8
    1 / -0
    Which organelle is involved in the formation of cilia and flagella in animals?
    Solution

    Basal body is also known as a modified centriole -- which serves both to create and connect the cilia and flagella to the cell.

  • Question 9
    1 / -0

    In which of the following membranes can maximum concentration of cardiolipin be found?

    Solution

    Cardiolipin is an important component of the inner mitochondrial membrane, where it constitutes about 20% of the total lipid composition. It is essential for the optimal function of numerous enzymes that are involved in mitochondrial energy metabolism.

  • Question 10
    1 / -0

    In which of the following cells were Golgi bodies first discovered?

    Solution

    Golgi bodies were discovered in 1898 by Italian physician Camillo Golgi during an investigation of the nervous system.

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