TASC Biology Level 3 Practice Questions - TASC Biology Level 3 (Course Code BIO315124) Exam

Simple diffusion moves small nonpolar molecules directly through the lipid bilayer without transport proteins. Simple diffusion requires ATP hydrolysis, whereas facilitated diffusion relies on kinetic energy. Facilitated diffusion transports solutes against their concentration gradient using protein pumps. Simple diffusion only occurs in prokaryotic cells, whereas facilitated diffusion occurs only in eukaryotic cells.