Trace one molecule of
[glucose, oxygen, a drug]
from entry to exit — every
structure it passes, what
happens at each, and what
fails if one step breaks.

Follow One Molecule Through the Body

One molecule, followed the whole way, with the failure points.

Prompt

Trace a single molecule of [glucose, oxygen, a drug] from the moment it enters the body to the moment it leaves — every structure it passes through, what happens to it at each, and what would go wrong if one step failed.