Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich process limits drug molecule penetration though gradients?
A)Transcellular active transport saturation✓
B)Intercellular lipophilicity driven exclusion
C)Paracellular tight junction blockage
D)Epithelial first pass metabolism
💡 Explanation
Active transport facilitates drug crossing; however, transport *saturation* limits high concentration gradients because the mechanism, *carrier-mediated transport*, reaches a maximum rate; therefore, the drug diffusion plateaus, rather than continually crossing a gradient.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome during biodiesel production increases when lipase concentration reduces activation energy?
- Which outcome is driven by increased entropy during water electrolysis?
- Which outcome results when a closed, insulated container holds supercooled liquid crossing into the solid phase?
- Which risk dramatically increases when dislocations concentrate near a grain boundary?
- Which mechanism reduces activation energy when platinum catalysts promote reactions in catalytic converters of vehicles?
- Which mechanism causes electron energy degeneracy removal in a hydrogen atom under electric field exposure?
