Exploring Diffusion and Osmosis in Cells

Exploring Diffusion and Osmosis in Cells

Assessment

Interactive Video

Created by

Liam Anderson

Biology

6th - 10th Grade

Hard

05:39

The video tutorial provides a detailed explanation of diffusion and osmosis. It begins with a recap of diffusion, describing it as the movement of molecules from high to low concentration until equilibrium is reached. Examples such as body spray and food coloring in water are used to illustrate this concept. The tutorial then transitions to osmosis, explaining it as the diffusion of water across a selectively permeable membrane. The role of aquaporins in facilitated diffusion is discussed, highlighting passive transport. The video also covers the inverse relationship between solute and solvent concentrations, using terms like hypertonic and hypotonic to describe solutions. The tutorial concludes with a recap of key concepts.

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10 questions

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1.

MULTIPLE CHOICE

30 sec • 1 pt

What is the primary driving force behind diffusion?

2.

MULTIPLE CHOICE

30 sec • 1 pt

In the example of body spray, where is the concentration of particles highest?

3.

MULTIPLE CHOICE

30 sec • 1 pt

What is osmosis specifically the diffusion of?

4.

MULTIPLE CHOICE

30 sec • 1 pt

What type of membrane does osmosis occur across?

5.

MULTIPLE CHOICE

30 sec • 1 pt

What happens to the concentration of free water when there is a high concentration of sodium molecules?

6.

MULTIPLE CHOICE

30 sec • 1 pt

What is the role of aquaporins in osmosis?

7.

MULTIPLE CHOICE

30 sec • 1 pt

What type of diffusion involves the help of proteins like aquaporins?

8.

MULTIPLE CHOICE

30 sec • 1 pt

What is the term for a solution with a high concentration of solutes and low concentration of solvents?

9.

MULTIPLE CHOICE

30 sec • 1 pt

What is the net movement of water molecules in a hypertonic solution?

10.

MULTIPLE CHOICE

30 sec • 1 pt

What is the relationship between solute concentration and solvent concentration in a solution?

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