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Biomolecules Te...

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  • Question 1
    4 / -1

    What is denoted by X and Y in the given graph?

  • Question 2
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    Which of the following statements is incorrect regarding enzymatic activity?

  • Question 3
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    Enzymes that catalyse removal of groups from substrates by mechanisms other than hydrolysis, and addition of groups to double bonds, are called

  • Question 4
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    Read the lgiven statements and select the correct option

    Statement 1 : Ribozymes are RNA molecules which catalyse the synthesis of certain specific RNAs and removal of introns from mRNA.
    Statement 2 : Ribozymes are proteinaceous enzymes.

  • Question 5
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    Read the given statements and select the correct options.
    Statement 1:     Low temperature destroys enzymes by causing their denaturation.
    Statement 2: High temperature preserves the enzymes in their inactive stages.

  • Question 6
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    Select the right option regarding the given graph.

  • Question 7
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    Feedback inhibition of enzyme is influenced by

  • Question 8
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    The inhibitor which does not resemble the substrate in structure and binds to the enzyme at site other than the active site is called

  • Question 9
    4 / -1

    Michaelis Menten Constant (Km​) is equal to

  • Question 10
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    Dihydroxyacetone-3-phosphate and glyceraldehyde-3- phosphate are interconvertible. The enzyme responsible for this interconversion belongs to the cateogry of

  • Question 11
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    Holoenzyme is the complete enzyme consisting of an apoenzyme and a co-factor. Select the option that correctly identifies the nature of apoenzyme and co-factor.

  • Question 12
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    Which of the following graphs shows the relationship between the rate of an enzymatic activity and substrate concentration (S)?

  • Question 13
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    Enzymes are most functional within the temperature range of

  • Question 14
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    Which of the following statements about enzymes are correct?
    (i) Enzymes do not alter the overall change in free energy for a reaction.
    (ii) Enzymes are proteins whose three dimensional shape is key to their functions.
    (iii) Enzymes speed up reactions by lowering activation energy.
    (iv) Enzymes are highly specific for reactions.
    (v) The energy input needed to start a chemical reaction is called activation energy.

  • Question 15
    4 / -1

    Which of the following is an example of isozyme?

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