Diffusion

Match the following Adaptations of Alveoli for Diffusion

• A folded membrane

• A Large Concentration Gradient

• Walls 1 cell thick

• Short Diffusion Pathway

• Ventilation of the lungs and circulation

• A Large Surface Area

Diffusion is the movement of ​ (a)   from a ​ (b)   concentration to a ​ (c)   concentration, across a ​ (d)   membrane.

• particles
• high
• low
• partially permeable
• water
• cell
• plant

An image of a cell was measured at 120mm. It was magnified 50x, what was the actual size of the cell? in mm

Reorder the following from largest to smallest

• μm

• km

• mm

• nm

• m

What is 0.25m in mm?

Organize these options into the right categories

Groups:

(a) Increase Diffusion Rate

,

(b) Decrease Diffusion Rate

• Thick vessel walls

• Low temperature

• A large surface area

• Increase temperature

• A low surface area

• Thin vessel walls

• High Concentration gradient

• A small concentration gradient