Diffusion, Osmosis & active transport Assignment

What is the process by which carbon dioxide moves from the blood into the air?

• Diffusion

• osmosis

• active transport

• respiration

Water moves from the soil into a root cell by which process?

• Active transport

• diffusion

• condensation

• osmosis

Which part of a plant cell is selectively (partially) permeable?

• Cell wall

• chlorophyll

• cell membrane

• vacuole

What happens to red blood cells that are placed in pure water?

• They shrink

• they burst

• they stay the same shape

• they get slightly larger

Which process requires ATP?

• Osmosis

• diffusion

• active transport

• evaporation

Naomi places a purple crystal of potassium permanganate into some cold water. As the crystal dissolves, the color starts to move through the water. What is the process by which the color moves?

• Dissolving

• osmosis

• diffusion

• active transport

Active transport cannot occur in one of these. Which one?

• Animal cell

• bacterium

• plant cell

• virus

An egg without a shell can be used as a model for a cell structure to demonstrate osmosis. Which cell structure is being modelled?

• Cell wall

• cell membrane

• nucleus

• ribosome

Ions in the soil enter a root by which process?

• Active transport

• diffusion

• osmosis

• dissolving

What happens when a plant cell is placed in a concentrated salt solution?

• It becomes turgid

• it bursts

• it becomes crenated

• it plasmolysis