Final answer:
Cholesterol travels through the blood with the help of micelles and lipoproteins, where it is stored in the hydrophobic core of the micelles or the outer layer of the lipoproteins, protected from the aqueous environment.
Step-by-step explanation:
A hydrophobic compound like cholesterol can effectively travel through the aqueous blood with the assistance of micelles or lipoproteins. Cholesterol, which is insoluble in water, is packed inside the core of the micelle. The micelle is structured with a hydrophilic (polar) exterior that interacts with the watery environment of the blood and a hydrophobic (non-polar) interior where cholesterol resides. This arrangement allows the hydrophobic cholesterol to be transported through the bloodstream.
In the context of lipoproteins, which also transport cholesterol through the blood, cholesterol is located on the exterior as part of the outer layer along with phospholipids and proteins. In both cases, the hydrophobic regions of these assemblages shield the cholesterol from the aqueous environment, allowing it to be transported to where it is needed in the body.