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Biomolecules Test - 34

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Biomolecules Test - 34
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Weekly Quiz Competition
  • Question 1
    1 / -0
    During protein denaturation, _______ is disrupted.
    Solution
    The denaturation of proteins involves breaking of bonds. The denaturation is unable to break the strong covalent bonds present in the primary structure so the primary structure of the proteins are retained after the denaturation but the 3D structure has alpha helix and beta helix bonds which are easily broken up during the process of denaturation.
  • Question 2
    1 / -0
    .............. are the type of amino acids which body is unable to synthesize.
    Solution
    All biological processes are catalyzed by enzymes and so enzymes are required to synthesize amino acids also. Humans do not possess the enzymes to synthesize all the amino acids. 
    The amino acids that the human body cannot synthesize are called  'essential amino acids' and must be provided through nutrition, e.g., methionine, lysine, valine, phenylalanine, histidine, etc. 
  • Question 3
    1 / -0
    Which one of the following is an anabolic process?
    Solution
    Anabolic processes are reactions in which  smaller organic molecules are used for the production of the large complex molecules. The process is an endergonic process in which the energy is supplied for the formation of the new bonds in the larger complexes. In the process of photosynthesis, the smaller carbon dioxide molecules are fixed for the formation of the six-carbon glucose molecule. This is building reaction which is a type of anabolic reaction. 
    Thus, the correct answer is option D. 
  • Question 4
    1 / -0
    Which of the following is not corretly matched for the organism and its cell wall degrading enzyme ?
    Solution
    In algae, the cell wall is made up of cellulose degraded by cellulase enzyme. Bacteria have lysozyme, plants cells have cell wall degraded by cellulose and fungi have chitinase.

    So, the correct answer is 'Algae - Methylase'.
  • Question 5
    1 / -0
    An ATP molecule is structurally most similar to a molecule of
    Solution
    • RNA consists of ribose nucleotides (nitrogenous bases appended to a ribose sugar) attached by phosphodiester bonds, forming strands of varying lengths. 
    • ATP is a type of ribose nucleotide, having an adenine base, a ribose sugar, and three phosphate groups. 
    • ATP is the energy currency of our cells. 

    So, the correct answer is 'RNA molecule'

  • Question 6
    1 / -0
    Lysosome contains :
    Solution
    Hydrolysis:- Chemical process of decomposition involving the splitting of  a bond and the addition of the hydrogen cation and the hydroxide anion of water and the enzyme that perform this type of function called hydrolytic enzyme.
    Lysosome:- Lysosomes hold enzymes that were created by the cell,
    The purpose of the lysosome 
    1. To digest things.
    2. To digest food or break down the cell when it dies.
  • Question 7
    1 / -0
    Common immediate source of energy in cellular activity or energy currency of the cell is
    Solution
    The common immediate source of energy in cellular activity is ATP molecule. It is also called as energy currency of the cell. ATP molecules are formed as a result of phosphorylation. It is used in various cellular processes for providing energy.
  • Question 8
    1 / -0
    Chemically, a nucleotide has a
    Solution
    A nucleotide is a phosphoric acid ester of a nucleoside. A nucleoside is compounds made up of a pentose sugar joined with a nitrogenous base. Hence, nucleotides are compounds made up of a pentose sugar, a nitrogenous base, and a phosphate moiety.
    So, the correct answer is option D.
  • Question 9
    1 / -0
    Two types of nucleic acids are DNA and 
    Solution
    Miescher discovered nucleic acids from pus cells in discarded surgical bands. He observed that these were acidic in nature. The two types of nucleic acid were DNA and RNA. These are considered as the hereditary unit of the cell. These carry characters from one generation to the other.
    So, the correct answer is option A
  • Question 10
    1 / -0
    Which one of the following will be largely different in various animal species ?
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