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 should use a molecule that is

Hydrophobic

Explanation:

Hydrophobic molecules will be able to bind to the active site whereas hydrophilic molecules will not be able to bind to a hydrophobic site.

Thanks researcher should use hydrophobic molecule

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.