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Biomolecules Te...

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  • Question 1
    1 / -0

    On plotting a graph between substrate concentration and time, a scientist found a sigmoid curve. The enzyme is 

  • Question 2
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    Name the hormone that stimulate the secretion of gastric juice.

  • Question 3
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    In recent years, pre-soaked laundry agent (detergent) contains an enzyme

  • Question 4
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    Cryptochrome, a photoreceptor in plants is sensitive to ......... wavelength.

  • Question 5
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    In 1938, Max Perutz a political refugee at Cambridge University published X-ray photograph crystal data for .......... and ........... proteins.

  • Question 6
    1 / -0

    Match the scientists and their contribution given in the columns.


    ScientistsContribution
    A. Pasteurp. Beer and butter milk are products of fermentation by yeast
    B. Hansenq. Diastase
    C. Payen and Persoz r. Purified rennet 
    D. Waksmans. Streptomycin

  • Question 7
    1 / -0

    Read the passage and answer the following questions.
    A bacterial strain used in a commercial fermenter converts substance A to substance B using enzyme Y. The same strain also contains enzyme Z which converts substance B to substance A. For each molecule of substance A, one molecule of substance B is produced and vice versa. The relative activities of enzymes Y and Z are given in the graph below. To maximise the production of substance B, at which temperature should the bacterial strain be fermented?

  • Question 8
    1 / -0

    The figure given shows the conversion of a substrate into product by an enzyme. Which one of the four options of reaction labelled as A, B, C and D are identified correctly?

  • Question 9
    1 / -0

    Choose the type of enzyme involved in the following reaction.


    $$S - G + S' \longrightarrow S + S' - G$$

  • Question 10
    1 / -0

    Structure of RNA can be studied by

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