The process of diffusion practice exercise 1

The diagram below shows a lit scented candle placed at one end of a room. After a short time, the scent is noticed throughout the room. Explain how this situation demonstrates diffusion, and relate it to how substances move in and out of cells. (1 mark)

The diagram below shows a lit scented candle placed at one end of a room. After a short time, the scent is noticed throughout the room. Explain how this situation demonstrates diffusion, and relate it to how substances move in and out of cells. (1 mark)

Describe how the structure of the cell membrane allows diffusion to occur, and name two substances that enter or leave the cell through diffusion. (2 marks)

Distinguish between diffusion and osmosis, and give one example of each in cells. (2 marks)

Why is diffusion important for living cells? Give one reason and an example to support your answer. (2 marks)

Explain the process of diffusion. Give one example from everyday life or within the human body to support your explanation. (2 marks)

Explain the process of diffusion. Give one example from everyday life or within the human body to support your explanation. (2 marks)

List three factors that affect the rate of diffusion in cells and briefly explain how each factor influences the process. (3 marks)

List three factors that affect the rate of diffusion in cells and briefly explain how each factor influences the process. (3 marks)

List two characteristics of diffusion and briefly explain each.  (2 marks)

List two characteristics of diffusion.  (2 marks)

List two characteristics of diffusion.  (2 marks)

The diagram below shows a cell surrounded by a high concentration of oxygen outside and a lower concentration inside. Explain what will happen and why, and name the process taking place. (2 marks)

The diagram below shows a cell surrounded by a high concentration of oxygen outside and a lower concentration inside. Explain what will happen and why, and name the process taking place. (2 marks)

The diagram below shows a cell surrounded by a high concentration of oxygen outside and a lower concentration inside. Explain what will happen and why, and name the process taking place. (3 marks)

The diagram below shows a cell surrounded by a high concentration of oxygen outside and a lower concentration inside. Explain what will happen and why, and name the process taking place. (3 marks)

The diagram shows a drop of ink placed in a beaker of still water. After a few minutes, the ink has spread throughout the water. What process is shown in this diagram, and how does it relate to diffusion in cells? (2 marks)

The diagram below shows a drop of ink placed in a beaker of still water. After a few minutes, the ink has spread throughout the water. What process is shown in this diagram, and how does it relate to diffusion in cells? (2 marks)

The diagram below shows a drop of ink placed in a beaker of still water. After a few minutes, the ink has spread throughout the water. What process is shown in this diagram, and how does it relate to diffusion in cells? (2 marks)

The diagram below shows a drop of ink placed in a beaker of still water. After a few minutes, the ink has spread throughout the water. What process is shown in this diagram, and how does it relate to diffusion in cells? (2 marks)

The diagram below shows a drop of ink placed in a beaker of still water. After a few minutes, the ink has spread throughout the water. What process is shown in this diagram, and how does it relate to diffusion in cells? (2 marks)

The diagram below shows a drop of ink placed in a beaker of still water. After a few minutes, the ink has spread throughout the water. What process is shown in this diagram, and how does it relate to diffusion in cells? (2 marks)

What is diffusion? Give one example of a substance that moves into the cell by diffusion and one that moves out of the cell by diffusion. (2 marks)

What is diffusion? Give one example of a substance that moves into the cell by diffusion and one that moves out of the cell by diffusion. (2 marks)

Why do larger organisms require specialized structures like lungs or gills for diffusion, unlike single-celled organisms? (2 marks)