Biology 9700 · AS & A Level · Protein synthesis

Protein synthesis — practice question

Carbonic anhydrase is a globular protein present in red blood cells.
(a(i))[2]

Explain why this protein is classed as globular.

(a(ii))[2]

State the role of carbonic anhydrase in red blood cells.

(b(i))[3]

Identify base X and state the evidence shown in Fig. 3.1 that backs up this identification.

(b(ii))[4]

Explain how this deletion could change the polypeptide made during protein synthesis.

(b(iii))[1]

Gene mutations may occur in either introns or exons. Suggest the likely effect of a gene mutation in an intron.

Worked solution & mark scheme

This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: globular / approximately spherical shape

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI