1AB - Diffusion and Osmosis

Diffusion is the net movement of molecules from region of _______________________.

• higher concentration to lower concentration

• lower concentration to higher concentration

• higher water potential to a lower water potential

• lower water potential to a higher water potential

Which side has a higher concentration of blue particles?

• Left side

• Right side

In which direction will the blue particles move?

• from left to right

• from right to left

During photosynthesis, there is higher concentration of oxygen __________ the leaf than __________ the leaf.

• inside; outside

• outside; inside

During photosynthesis, oxygen molecules _____________ the leaf through the stomata.

• diffuse in

• diffuse out

During photosynthesis, there is higher concentration of carbon dioxide __________ the leaf than __________ the leaf.

• inside; outside

• outside; inside

During photosynthesis, carbon dioxide molecules _____________ the leaf through the stomata.

• diffuse in

• diffuse out

Osmosis is the net movement of water molecules from a region of higher concentration to a region of lower concentration.

• True

• False

What is required for osmosis to occur?

• fully permeable membrane

• partially permeable membrane

• with or without a membrane

What types of molecules are involved in osmosis?

• glucose

• sucrose

• water

• any type of molecules