Esther

Hi all, im doing first year biochemistry in an undergraduate degree. I have an exam coming up this week and am doing all my essay practice questions, i just cannot figure out what this question is asking me to do ? I can explain what each of a, b and c are, but i don't understand and cannot find out how they determine the activity of biomolecules? QUESTION Give an example to illustrate the significance of a. enantiomers b. conformers and c. geometric isomers in determining the activity of biomolecules. Does anyone have any suggestions on what i can research or can point me in the right direction for me to answer this question? thanks