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Biomolecules Test - 1

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Biomolecules Test - 1
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Identify the incorrect pair in the following

    Solution

    Explanation:

    Haemoglobin present in blood transport gases, RNA ( tRNA and mRNA) are involved in proteinsynthesis and steroids are used as sex stimulating chemicals but glucose is not a storage product.

     

  • Question 2
    1 / -0

    Element located in centre of pophyrin ring of chlorophyll is

    Solution

    Explanation:

    Chlorophyll molecule consists of a porphyrin ring and a long tail like chain of carbon and hydrogen. The centre of pophyrin ring is occupied by Mg ions.

     

  • Question 3
    1 / -0

    98% of living body is formed of six elements- C, H,N,O and

    Solution

    Explanation:

    Everything in universe is made up of elements. The body of living organisms contain mainly six elements. These are carbon, hydrogen, oxygen phosphorous and Sulphur. In facts, 98% of living body is formed on these six elements.

     

  • Question 4
    1 / -0

    The most abundant organic molecule present on earth is

    Solution

    Explanation:

    Cellulose is the most abundant organic molecule present on earth. Cellulose forms the cell wall of all plant cells. Cell wall is the outermost protective layer of cell.

     

  • Question 5
    1 / -0

    No cell could live without

    Solution

    Explanation:

    Enzymes are bio-catalyst. All the metabolic biochemical reactions are carried out with the help of enzyme. No cell could survive without enzyme.

     

  • Question 6
    1 / -0

    Which of the following is not obtained on hydrolysis of nucleic acid?

    Solution

    Explanation:

    Hydrolysis of nucleic acid (DNA and RNA) produces pentose sugar ( ribose or deoxyribose) purine and pyrimidine. Phosphoric acid is not released on hydrolysis of DNA or RNA.

     

  • Question 7
    1 / -0

    Which of the following are aromatic amino acids?

    Solution

    Explanation:

    Based on number of amino and carboxyl groups, there are acidic (e.g., glutamic acid), basic (lysine) and neutral (valine) amino acids. Similarly, there are aromatic amino acids (tyrosine, phenylalanine, tryptophan).

     

  • Question 8
    1 / -0

    Arachidonic acid has

    Solution

    Explanation:

    Arachidonic acid has 20 carbon atoms including the carboxyl carbon. Molecular formula- C20H32O2.

     

  • Question 9
    1 / -0

    The oils have

    Solution

    Explanation:

    Oils have lower melting point (e.g., gingely oil) and hence remain as oil in winters.

     

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