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Biomolecules

Proteins: Structure and Functions Practice Questions

20 free Proteins: Structure and Functions practice questions for the NCERT Biology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Proteins: Structure and Functions questions

20 questions
  1. Q1. Which of the following is the most abundant protein in the animal world?
  2. Q2. Proteins are considered to be _______ of amino acids.
  3. Q3. The chemical and physical properties of amino acids are essentially of the amino, carboxyl and the _______ functional groups.
  4. Q4. In the 'Primary Structure' of a protein, the first amino acid is also called as:
  5. Q5. Which type of protein structure is represented by a three-dimensional view that is absolutely necessary for many biological activities, such as enzymatic catal…
  6. Q6. Which of the following is an example of an aromatic amino acid?
  7. Q7. The protein that enables glucose transport into cells is:
  8. Q8. In a protein, amino acids are linked by a peptide bond which is formed between the:
  9. Q9. Adult human hemoglobin consists of how many subunits?
  10. Q10. The secondary structure of protein, such as the alpha-helix, is stabilized primarily by:
  11. Q11. Essential amino acids are those which:
  12. Q12. A particular property of amino acids is the ionizable nature of -NH2 and -COOH groups. In solutions of different pHs, the structure of amino acids changes. The…
  13. Q13. Which of the following functions is NOT typically performed by proteins?
  14. Q14. If a protein consists of more than one polypeptide chain, the arrangement of these subunits with respect to each other is known as:
  15. Q15. Which of the following is an acidic amino acid?
  16. Q16. In the alpha-helix secondary structure, the polypeptide chain is coiled in which direction?
  17. Q17. The simplest amino acid, where the R-group is represented by a hydrogen atom, is:
  18. Q18. Which of the following proteins acts as an intercellular ground substance?
  19. Q19. A protein's primary structure provides information about:
  20. Q20. Which of the following is a basic amino acid?