Quiz on Diffusion & Osmosis

Diffusion involves the movement of what?

• Atoms

• Molecules

• Electrons

• Protons

What type of molecules are involved in diffusion?

• Solid molecules

• Gas or dissolved molecules

• Liquid molecules

• Plasma molecules

What is the driving force behind diffusion?

• Temperature gradient

• Concentration gradient

• Pressure gradient

• Electrical gradient

Which of the following diagrams best represents diffusion?

• A diagram showing molecules moving from low to high concentration.

• A diagram showing molecules moving from high to low concentration.

• A diagram showing molecules moving randomly.

• A diagram showing molecules staying in one place.

Which of the following is a real-life example of diffusion?

• Water boiling

• Sugar dissolving in water

• Perfume scent spreading in a room

• Ice melting

What is the main driving force behind diffusion?

• Energy input

• Concentration gradient

• Temperature change

• Pressure difference

What is osmosis?

• The movement of molecules from a region of lower concentration to a region of higher concentration

• The movement of water molecules from a region of higher concentration to a region of lower concentration

• The movement of molecules in a circular motion

• The movement of molecules in a random pattern

Which of the following is an example of osmosis?

• Mixing oil and water

• Water moving into a raisin placed in water

• Stirring sugar into tea

• Adding salt to food

What happens to a cell placed in a hypotonic solution?

• It swells

• It shrinks

• It remains the same

• It bursts

In osmosis, water molecules move from a _______ solution to a _______ solution.

• concentrated, dilute

• dilute, concentrated

• permeable, impermeable

• impermeable, permeable