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Protein Structure


This quiz is based on the various aspects of the structure of protein molecules and amino acids.

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Multiple choice

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1.

Which of the following amino acids is polar ?

  Valine

  Isoleucine

  Histidine

  Leucine

  Half-n-half Clue
 

2.

Which of the following is not an aromatic amino acid ?

  Tryptophan

  Serine

  Tyrosine

  Phenylalanine

  Half-n-half Clue
 

3.

Each protein has a particular 3D structure which is decided by its:

  primary structure

  Quaternary structure

  tertiary structure

  secondary structure

  Half-n-half Clue
 

4.

The sequence of different amino acids in the polypeptide chain of a protein is called its :

  Quaternary structure

  primary structure

  tertiary structure

  secondary structure

  Half-n-half Clue
 

5.

The Quaternary structure of a protein is :

  its structure resulting from interactions between amino acid side chains.

  its structure resulting from the union of more than one protein molecule, called subunit proteins.

  its amino acid sequence

  its structure resulting from hydrogen bonds between the C=O and N-H groups of different amino acids.

  Half-n-half Clue
 

6.

Successive amino acids in the polypeptide chains that make up a protein are held together by :

  peptide bonds

  phosphodiester bonds

  N-glycosidic bonds

  interprotamine disulfide bonds

  Half-n-half Clue
 

7.

Which of the following is not a type of protein secondary structure ?

  Turns

  á-helix

  â-pleated sheet

  third level folding to form small globules

  Half-n-half Clue
 


 
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