The process of diffusion practice exercise 3

The diagram below shows a cell with many oxygen molecules outside and only a few inside. What process is shown, and why are the oxygen molecules moving in that direction? (2 marks)

The diagram below shows a cell with many oxygen molecules outside and only a few inside. What process is shown, and why are the oxygen molecules moving in that direction? (2 marks)

The diagram shows a cross-section of a leaf with arrows showing carbon dioxide entering. What is the name of the process allowing the gas to enter the leaf, and why is it important to the plant? (2 marks)

The diagram shows a cross-section of a leaf with arrows showing carbon dioxide entering. What is the name of the process allowing the gas to enter the leaf, and why is it important to the plant? (2 marks)

The diagram shows a cross-section of a leaf with arrows showing carbon dioxide entering. What is the name of the process allowing the gas to enter the leaf? (2 marks)

The diagram shows a cross-section of a leaf with arrows showing carbon dioxide entering. What is the name of the process allowing the gas to enter the leaf? (2 marks)

A mango is left out in the open air for several days. It starts to lose water and shrinks. Explain what process is responsible for the mango losing water and how it works. (2 marks)

A mango is left out in the open air for several days. It starts to lose water and shrinks. Explain what process is responsible for the mango losing water and how it works. (2 marks)

A student puts one tea bag in hot water and another in cold water. The hot one changes colour faster. What process is happening, and how does temperature affect it? (2 marks)

A student puts one tea bag in hot water and another in cold water. The hot one changes colour faster. What process is happening, and how does temperature affect it? (2 marks)

A student puts one tea bag in hot water and another in cold water. The hot one changes colour faster. What process is happening, and how does temperature affect it? (2 marks)

A student puts slices of raw potato into a bowl of coloured water. After some time, the potatoes begin to change colour. Explain what is happening to the potato slices and what process causes this change. (2 marks)

A student puts slices of raw potato into a bowl of coloured water. After some time, the potatoes begin to change colour. Explain what is happening to the potato slices and what process causes this change. (2 marks)

A student puts slices of raw potato into a bowl of coloured water. After some time, the potatoes begin to change colour. Explain what is happening to the potato slices and what process causes this change. (2 marks)

A student places a drop of red dye at one end of a beaker filled with still water. After 10 minutes, the red colour spreads throughout the beaker without stirring. Explain what process is taking place and why the dye spreads in the water. (2 marks)

A science teacher sprays perfume at the front of the classroom. After a short time, students at the back of the class can smell it. Explain what this situation teaches about diffusion and how it relates to how gases move in and out of cells. (1 mark)

Study the diagram below, which shows the inside and outside of a cell with oxygen molecules. Describe what will happen to the oxygen molecules, and explain why. (1 mark)

Study the diagram below, which shows the inside and outside of a cell with oxygen molecules. Describe what will happen to the oxygen molecules, and explain why. (1 mark)

Study the diagram of a cell membrane shown below. Small particles are shown moving across it. What process is illustrated in the diagram, and why do the molecules move in this direction? (2 marks)

Study the diagram of a cell membrane shown below. Small particles are shown moving across it. What process is illustrated in the diagram, and why do the molecules move in this direction? (2 marks)

Study the diagram of a cell membrane shown below. Small particles are shown moving across it. What process is illustrated in the diagram, and why do the molecules move in this direction? (2 marks)

A student sprays perfume in one corner of the room. A few minutes later, the smell reaches students on the other side. What process is responsible for the smell spreading, and how is this similar to how substances move in cells? (2 marks)

A student sprays perfume in one corner of the room. A few minutes later, the smell reaches students on the other side. What process is responsible for the smell spreading, and how is this similar to how substances move in cells? (2 marks)

A student sprays perfume in one corner of the room. A few minutes later, the smell reaches students on the other side. What process is responsible for the smell spreading, and how is this similar to how substances move in cells? (2 marks)