21. Outline the fundamental principle underlying the Qsar approache to drug design 22. Lipophilicity, shape and electron distribution all have major influence on drug activity. State the parameters that are common used as a measure of these properties in the QSar approach to drug design. 23. What are the advantages and disadvantages of using molecular mechanics to model molecular structures 24. Explain the significance of the terms global and local minimum energy conformations 25 Describe, in outline only, what is meant by(a) molecular dynamics and(b) docking 26)(a)What is the principle that forms the basis of the quantum mechanical approach to molecular modeling? (b) State and name the equation that is the starting point of the wave mechanical approach to molecular modeling 27 Explain the meaning of the term pharmacophore 28. Explain why a molecular with a flexible structure would be more likely to be more active than its analogue with a rigid structure. The compound a and b both bind to the same target site, which of them would you expect to be the most active? State the basis of your decision NH2 H3C NH221. Outline the fundamental principle underlying the QSAR approache to drug design. 22. Lipophilicity, shape and electron distribution all have major influence on drug activity. State the parameters that are common used as a measure of these properties in the QSAR approach to drug design. 23. What are the advantages and disadvantages of using molecular mechanics to model molecular structures. 24. Explain the significance of the terms global and local minimum energy conformations. 25. Describe, in outline only, what is meant by (a) molecular dynamics and (b) docking 26) (a) What is the principle that forms the basis of the quantum mechanical approach to molecular modeling? (b) State and name the equation that is the starting point of the wave mechanical approach to molecular modeling. 27 Explain the meaning of the term pharmacophore. 28. Explain why a molecular with a flexible structure would be more likely to be more active than its analogue with a rigid structure. The compound A and B both bind to the same target site, which of them would you expect to be the most active? State the basis of your decision. H3C NH2 H3C NH2 (A) (B)