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MCQs

Total Questions : 26 | Page 3 of 3 pages
Question 21. . A protein that shows infinite cooperative for binding of n ligands will
  1.    show a Hill coefficient (nH) of 0.0
  2.    only be found in either the unliganded form or the fully liganded form
  3.    show a Hill coefficient (nH) of n
  4.    both (b) and (c)
 Discuss Question
Answer: Option D. -> both (b) and (c)
Question 22. . The specificity of a ligand binding site on a protein is based on
  1.    the absence of competing ligands
  2.    the amino acid residues lining the binding site
  3.    the presence of hydrating water molecules
  4.    the opposite chirality of the binding ligand
 Discuss Question
Answer: Option B. -> the amino acid residues lining the binding site
Question 23. . 
A protein that binds two ligands in a non-cooperative manner will show
  1.    a sigmodial binding curve
  2.    a hyperbolic binding curve
  3.    a linear Scatchard Plot
  4.    both (b) and (c)
 Discuss Question
Answer: Option D. -> both (b) and (c)
Question 24. . Small molecules affect hemoglobin (Hb) by
  1.    decreasing Hb affinity for O2
  2.    increasing [H+]
  3.    increasing Hb affinity for O2
  4.    increasing [H+] and decreasing Hb affinity for O2
 Discuss Question
Answer: Option D. -> increasing [H+] and decreasing Hb affinity for O2
Question 25. . A protein that shows infinite cooperative for binding of n ligands will
  1.    show a Hill coefficient (nH) of 0.0
  2.    only be found in either the unliganded form or the fully liganded form
  3.    show a Hill coefficient (nH) of n
  4.    both (b) and (c)
 Discuss Question
Answer: Option D. -> both (b) and (c)
Question 26. . The specificity of a ligand binding site on a protein is based on
  1.    the absence of competing ligands
  2.    the amino acid residues lining the binding site
  3.    the presence of hydrating water molecules
  4.    the opposite chirality of the binding ligand
 Discuss Question
Answer: Option B. -> the amino acid residues lining the binding site

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