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A homopolymer has only one type of build...

A homopolymer has only one type of building block called monomer repeated 'n' number of times. A heteropolymer has more than one type of monomer. Proteins are heteropolymers usually made of

A

20 types of monomer

B

40 types of monomer

C

30 types of monomer

D

only one type of monomer.

Text Solution

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The correct Answer is:
A
The function and shape of a protein is affected by sequence of 20 types of amino acids, each having an amino group `-NH_(2)`, a carboxylic acid group `-COOH`, a hydrogen atom each attached to carbon located next to `-COOH` group and a side chain R which varies from one amino acid to other. (it can be hydrogen or an aliphatic group, an aromatic or heterocyclic group).
`H_(2)N-underset(R)underset(|)overset(H)overset(|)(C)-COOH`
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Knowledge Check

  • A homopolymer has only one type of building block called monomer repeated 'n' number of times. A heteropolymer has more than one type of monomer. Proteins are heteropolymers made of amino acids. While a nucleic acid like DNA or RNA is made of only 4 types of nucleotide monomers, proteins are made of

    A
    20 types of monomers
    B
    40 types of monomers
    C
    3 types of monomer
    D
    only one type of monomer

  • A polymer has only one type of building block celled monomer repeated n number of times . A heteropolymer has more than one type of monomer . Proteins are heteropolymers made of amino acids . If a nucleic acid , like DNA or RNA is made of only 4 types of nucleotide monomers, proteins are made of :

    A
    20 types of monomers
    B
    40 types of monomers
    C
    3 types of monomers
    D
    Only one type of monomer

  • A polymer containing more than one type of monomer is called _____.

    A
    Heteropolymer
    B
    Homopolymer
    C
    Monomer
    D
    Polyester

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    Which of the crystal systems has more than one type of bravais lattices?

    Polymers are made up of small molecules called monomers. Polymers which are formed by one type of monomer called homopolymers and which are formed by more than one type of monomers are called co-polymers. Natural polymers are biodegradable whereas systhetic polymers may or may not be. Addition or chain growth polymerization involves the repeated addition of monomers to the polymer chain. The monomers are unsaturated compounds and this type of polymerization takes placed by ionic (cationic or anionic) as well as free radical a series of condensation reactions between the monomers. Each monomer normally contains two functional groups. Branch chain polymers may be condensation polymers or addition but cross linked polymers are always condensation polymers. Which one of the following monomers is most reactive for anionic polymerization ?

    Polymers are made up of small molecules called monomers. Polymer which are formed by one type of monomer is called homopolymer and which are formed by more than one type of monomers are called co-polymers. Natural polymers are biodegradable whereas synthetic polymers may or may not be. Addition or chain growth polymerization involves the repeated addition of monomers to the polymer chain. The monomers are unsaturated compounds and this type of polymerization takes place by ionic (cationic or anionic) as well as free radical mechanism. Condensation or step growth polymerization involves a series of condensation reactions between twomonomers. Each monomer normally contains two functional groups. Branch chain polymers may be condensation or addition but cross linked polymers are always condensation polymers. Which one of the following monomer is most reactive for anionic polymerization?

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