SPM Biology 2018, Paper 2 (Question 5 & 6)

Question 6:(a) Diagram 6.1 shows a gaseous exchange in the alveolus.Diagram 6.1Explain how oxygen is transported to the body tissues for cellular respiration. [4 marks](b)Based on the statement above, suggest and explain how to keep our lungs healthy. [6 marks](c) Diagram 6.2.1 and 6.2.2 show the respiratory organ from two different organisms.Explain similarities and differences … Read more