What name is given to the air sacs in the lungs where gas exchange happens?
Back
Card 7
Front
Our lungs allow us to breathe in and out. Describe the changes that take place in the thorax when breathing air into the lungs.
Back
Card 8
Front
Some people can't breathe on their own and have to use an artificial ventilator. How does an artificial ventilator work?
Back
Card 9
Front
Give one potential disadvantage of using an artificial ventilator.
Back
Card 10
Front
Four 5cm long cylinders were cut from a fresh potato.They were then placed in different sugar solutions.After four hours the potato cylinders were removed and measured.Which potato cylinder would you expect to be the shortest? Explain why.
Back
Card 11
Front
The potato cylinder in tube A increased in length during the four hours. Explain why this happened.