In this episode, Emma looks at gas exchange in the human body for your A level Biology exam. She goes through the structure of the lungs and how each part is adapted to its function, including the alveoli, the bronchi and bronchioles. Perfect for AQA, Edexcel and OCR exam boards. Ideal for preparing you for your A Level Biology exam.
Click here for the full course, or visit this link: http://bit.ly/2TaDFD8