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Cell The Unit of Life Test - 69

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Cell The Unit of Life Test - 69
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  • Question 1
    1 / -0
    Which group of organelles is involved in synthesis of substances needed by Cell ?
    Solution
    'Ribosomes, Rough endoplasmic reticulum, Smooth endoplasmic reticulum' are the group of organelles involved in the synthesis of substances needed by the cell.
    So, the correct option is, 'Ribosome, RER, SER'.
  • Question 2
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    Secretory polypeptide carrying signal peptide is called _______.
  • Question 3
    1 / -0
    A close relationship between ER, lysosome and dictyosomes is denoted as
    Solution
    • GERL is the acronym used for a system present in cells that involve Golgi (dictyosomes), endoplasmic reticulum, and lysosomal complex mainly to perform endocytosis and exocytosis functions.
    So, the correct option is B.
  • Question 4
    1 / -0
    Which of the following statements is incorrect or centrioles ? 
    Solution
    Centrosome is an organelle usually containing 2 cylindrical structures called centrioles. Both the centrioles in a centrosome lie perpendicular to each other in which each centriole has an organisation like that of a cartwheel. They are made up of 9 evenly spaced peripheral fibrils of tubulin protein . The central part of the proximal region of the centriole is proteinaceous hub which is connected with peripheral triplets by radial spokes .
    So, the correct option is 'Option B' .
  • Question 5
    1 / -0
    Active transport of solutes in a living system is?
  • Question 6
    1 / -0
    Lysozome occurs in
    Solution
    Lysozyme, also known as muramidase or N-acetylmuramide glycanhydrolase is an antibacterial enzyme produced by animals and humans that forms part of the innate immune system. Lysozyme is abundant in secretions including tears, saliva, human milk, sweat and mucus. It is also present in cytoplasmic granules of the macrophages and the polymorphonuclear neutrophils.
    So, the correct answer is 'Tears, saliva, sweat and mucus'.
  • Question 7
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    The function of lysosome is to ____________________.
  • Question 8
    1 / -0
    Mitrochondral equivalent in prokaryotic bacterial cell is ______________.
    Solution
    Two cell organelles namely mitochondria and chloroplasts are capable of independent existence as they can synthesize energy and food,have ds DNA and 70s ribosomes for protein synthesis. Both ar equivalent to each other.
    So, the correct ans is option A.
  • Question 9
    1 / -0
    Which one of the following cell organelles is correctly matched with its function? 
    Solution
    Ribosome is a complex molecular substance found inside living cells that produces proteins from amino acids during the process caleed protein synthesis or translation. The process of protein synthesis is a primary function which is performed by a living cell. Every living cell requires ribosomes for protein synthesis.It is associated with the translation of informations and linking of the amino acids. Mitochondria mostly generate chemical energy in the cells. Chemical energy produced by mitochondria is stored in a small molecule called ATP. Plasma membrane functions as the protective oart of the cell as well as provides fixed environment in the cell, it also helps in nutrient transport in the cell and elimination of the toxic materials out of the cell. Centrosome is associated with the function of cell division.
    So, the correct option is (A).
  • Question 10
    1 / -0
    DNA is not present in ___________.
    Solution
    The nucleus is a house for chromosomal DNA, also called as nuclear DNA. Mitochondria and chloroplast are semiautonomous organelles that have single-stranded circular DNA. The ribosome is an assemblage of ribosomal RNA and ribosomal protein but does not contain its own DNA. 
    Thus, the correct answer is option A. 
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