Question

• diffusion = movement from to concentration until equilibrium is reached.
• example: exchange of and in the lungs.
• facilitated diffusion = uses proteins to move molecules like glucose and amino acids.
• osmosis = diffusion of across a selectively permeable membrane.
• osmotic pressure increases with more solutes.
• solution types:

○ isotonic = same osmotic pressure as body fluids ( % nacl).
○ hypertonic = solution with osmotic pressure than body fluids.
○ hypotonic = solution with osmotic pressure.

Explanation:

Diffusion is from high to low concentration. In lungs, oxygen and carbon - dioxide are exchanged. Facilitated diffusion uses carrier proteins. Osmosis is water diffusion. More solutes increase osmotic pressure. Isotonic NaCl is 0.9%. Hypertonic has higher, hypotonic has lower osmotic pressure than body fluids.

Answer:

• Diffusion: high, low
• Example: oxygen, carbon - dioxide
• Facilitated diffusion: carrier
• Osmosis: water
• Osmotic pressure: dissolved
• Isotonic: 0.9
• Hypertonic: higher
• Hypotonic: lower