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Non-proteinaceous enzyme that acts as a ...

Non-proteinaceous enzyme that acts as a catalyst for the formation of peptide bond is
Or
''All enzymes are proteins.'' This statement is now modified because an apparent exception to this biological truth is

A

Spliceosome

B

Ribozyme

C

RNA poly I

D

RNA poly III

Text Solution

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The correct Answer is:
B
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The formation of a peptide bond is catalysed by the enzyme .................. .

The proteinaceous molecule that joins a non-protein prosthetic group to form a functional enzyme, is called

Knowledge Check

  • "All enzymes are proteins", this statement is now modified because of exception to this

    A
    Arylsulphatase
    B
    Ribozymes
    C
    Nitroreductase
    D
    Dehydrogenase

  • All enzymes are proteins except

    A
    Trypsin
    B
    Pepsin
    C
    Steapsin
    D
    Ribozyme and Ribonuclease-P

  • The enzyme that catalyses peptide bond formation is located in

    A
    In DHU loop of tRNA
    B
    Smaller subunit of ribosome
    C
    Large subunit of ribosome
    D
    On mRNA

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    Assertion : All proteinaceous enzymes have a three dimensional structure Reason : The secondary struture of protein is according to amino acids present inside the polypeptide

    The non-protein component in enzymes which is necessary for its biological activity is called

    Statement I: All enzymes are protiens but all proteins are not enzymes. Statement II: Enzymes are biocatalysts and have stable configuration having an active site.

    Identify the wrong statements (a) The substrate binds to active site of enzyme and not fitting into active site (b) The binding of substrate induces the enzyme to alter its shape (c ) Chemical bonds of substrate break down not to form now enzyme product complex (d) The enzyme releases the products of the reaction and run through catalytic cycle once again

    The Following statements describe some of the steps of translation ,br (a)For chain elongation, the presence of catalyst enhances the rate of peptide bond formation.br (b) The process of translation of mRNA to protein begins when both the subunits of ribosome encounter and associate with mRNA.br (c) During chain elongation, the ribosomes moves from codon to codon along the mRNA. The correct statements are

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