Diffusion — practice question

Which features are true of both osmosis and diffusion?

• Arequire a partially permeable membrane: ✓; require a concentration gradient: ✓; are energy consuming processes: ✗
• Brequire a partially permeable membrane: ✓; require a concentration gradient: ✗; are energy consuming processes: ✓
• Crequire a partially permeable membrane: ✗; require a concentration gradient: ✓; are energy consuming processes: ✗
• Drequire a partially permeable membrane: ✗; require a concentration gradient: ✗; are energy consuming processes: ✓