Biology B (Advancing Biology) H022: Transport systems in mammals Topical Past Paper Questions

(a) The image shows a dissected mammalian heart. (i) Name the structures labelled G and H. G ..... [2] H ..... [2] (ii) State two safety precautions that should be taken during a heart dissection and explain why each is important. Precaution 1 ..... [2] Explanation ..... [2] Prec…

Fig. 1.1 is a photomicrograph showing some of the cells that line the bronchus. Fig. 1.1 (a) (i) State the function of the cell labelled X in Fig. 1.1. [1] (ii) Calculate the magnification of the image in Fig. 1.1. (b) During an asthma attack, drugs known as bronchodilators can b…

Pathologists are often required to produce blood smears for analysing blood samples and determining the health of patients. A pathologist produced a blood smear and then observed it using a light microscope. Fig. 6 shows the image of the blood smear seen by the pathologist. Fig.…