Q1. Consider the HIV enzyme called protease. The amino acid residues at the active site are highly hydrophobic. In designing a drug that would bind to the active site and jam it, researchers must use which kind of molecule?

Q2. 1. Why can't microbes that as expected clean up the environment continue to do so as in the past? How have human made their task harder? Easier?

2. Why is energy from fusion reactors, dissimilar that from fission reactors, so attractive from an environmental perspective?