Exploring Concentration Diffusion and Osmosis Through Engaging Experiments

The video tutorial introduces the concepts of concentration, diffusion, and osmosis. It begins by explaining concentration using a salt-water solution, then moves on to diffusion, illustrating how substances move from high to low concentration. The tutorial further explores osmosis, detailing how water moves across a semi-permeable membrane, and explains its application in cells with isotonic, hypotonic, and hypertonic solutions. The video concludes with a recap of these key concepts.

What is concentration in the context of a solution?

• The total volume of the solution

• The measure of one substance in a solution

• The temperature of the solution

• The color of the solution

In the diffusion experiment, why does the colored salt spread throughout the beaker?

• Due to the movement from high to low concentration

• Because of gravity

• Due to external pressure

• Because of temperature changes

Which everyday phenomenon is an example of diffusion?

• Ice melting

• Aroma of food spreading

• Sunlight entering a room

• Water boiling

What is the role of a semi-permeable membrane in osmosis?

• It blocks all molecules

• It allows only salt molecules to pass through

• It allows only water molecules to pass through

• It allows all molecules to pass through

In the osmosis experiment, why does water move from compartment B to A?

• Because compartment A has more salt

• Because compartment B is larger

• Because compartment B has more salt

• Because compartment A is larger

What happens to a cell in a hypotonic solution?

• It shrinks

• It dissolves

• It swells

• It remains the same

What is the term for water moving into a cell?

• Filtration

• Diffusion

• Endosmosis

• Exosmosis

What is the result of placing a cell in a hypertonic solution?

• The cell remains unchanged

• The cell swells

• The cell shrinks

• The cell bursts

Which process is responsible for the absorption of water in plant roots?

• Diffusion

• Osmosis

• Condensation

• Evaporation

What is the main difference between diffusion and osmosis?

• Diffusion requires energy, osmosis does not

• Diffusion involves gases, osmosis involves water

• Diffusion occurs only in plants, osmosis occurs only in animals

• Diffusion involves water, osmosis involves gases