diffusion adaptations sutt

Question 1

how are the alveoli adapted for diffusion

Answer 1

Very large surface area → millions of alveoli for maximum gas exchange

Walls one cell thick → very short diffusion distance

Question 2

how are the villi/small intestine adapted for diffusion

Answer 2

Very large surface area → villi increase area for nutrient absorption

Walls one cell thick → short diffusion distance

Question 3

how are plant leaves adapted for diffusion

Answer 3

Large surface area → broad, flat shape increases diffusion

Thin leaf → short diffusion distance

Question 4

How fish gills / gill filaments are adapted for diffusion

Answer 4

have gill filament Large surface area

Large surface area → many gill filaments

Question 5

How root hair cells are adapted for diffusion

Answer 5

Large surface area → long hair-like extension increases absorption

Thin cell wall → short diffusion distance