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Biomolecules Te...

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  • Question 1
    1 / -0

    Which of the following are purine bases?

    (i) Guanine

    (ii) Adenine

    (iii) Thymine

    (iv) Uracil

  • Question 2
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    Which of the following terms are correct about enzyme?

    (i) Proteins

    (ii) Dinucleotides

    (iii) Nucleic acids

    (iv) Biocatalysts

  • Question 3
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    Match the following enzyms given in Column I with the reactions they catalyse given in Column II.

    Column I (Enzymes) Column II (Reactions)
    (i) Invertase (a) Decomposition of urea into \(NH_3\) and \(CO_2\)
    (ii) Maltase (b) Conversion of glucose into ethyl alcohol
    (iii) Pepsin (c) Hydrolysis of maltose into glucose
    (iv) Urease (d) Hydrolysis of cane sugar
    (v) Zymase (e) Hydrolysis of proteins into peptides

  • Question 4
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    Assertion : All naturally occurring α-amino acids except glycine are optically active.

    Reason : Most naturally occurring amino acids have L-configuration.

  • Question 5
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    Assertion : Deoxyribose, \(C_5H_{10}O_4\) is not a carbohydrate.

    Reason : Carbohydrates are hydrates of carbon so compounds which follow \(C_x(H_2O)_y\) formula are carbohydrates.

  • Question 6
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    Assertion : Glycine must be taken through diet.

    Reason : It is an essential amino acid.

  • Question 7
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    Assertion : In presence of enzyme, substrate molecule can be attacked by the reagent effectively.

    Reason : Active sites of enzymes hold the substrate molecule in a suitable position.

  • Question 8
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    Which of the following statements is incorrect?

  • Question 9
    1 / -0

    The pyrimidine bases present in DNA are 

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