Head to savemyexams.com for more awesome resources 9.1 Circulatory Systems, Heart & Blood Vessels Question Paper Course CIE IGCSE Biology Section 9. Transport in Animals Topic 9.1 Circulatory Systems, Heart & Blood Vessels Difficulty Medium Time allowed: 50 Score: /36 Percentage: /100 Page 1 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to savemyexams.com for more awesome resources Question 1a A scientist investigated the effect of different types of activity on heart rate of participants aged 21 after they had completed the activity for 10 minutes. The results are shown in Fig. 1. Fig. 1 (i) State two control variables the scientist should have ensured throughout the investigation. [2] (ii) Describe the results of the investigation. [3] [5 marks] Page 2 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to savemyexams.com for more awesome resources Question 1b Describe how the scientist could have measured and recorded heart rate. [3 marks] Question 1c Extended Explain the effect swimming has on heart rate. [3 marks] Page 3 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to savemyexams.com for more awesome resources Question 2a Extended Only Fig. 1 shows a photomicrograph of human blood. Fig. 1 Describe the differences in appearance and the functions of the three cells labelled in Fig. 1. [6 marks] Page 4 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to savemyexams.com for more awesome resources Question 2b Extended Only Fig. 2 shows some of the stages of blood clotting. Fig. 2 (i) Complete Fig. 2 by filling in the two empty boxes. [1] (ii) State two roles of blood clotting. [2] [3 marks] Page 5 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to savemyexams.com for more awesome resources Question 3a Fig. 1 shows a photomicrograph of some red blood cells. Fig. 1 (i) State the function of a red blood cell. [1] (ii) State two ways in which a red blood cell is adapted to its function. [2] [3 marks] Question 3b State the name of a component of blood that is responsible for clotting. [1 mark] Page 6 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to savemyexams.com for more awesome resources Question 3c (i) State the name of the disease caused by a blockage in the arteries supplying the heart muscle. (ii) List three risk factors that increase the risk of a blockage in the arteries supplying the heart muscle. [1] [3] [4 marks] Page 7 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to savemyexams.com for more awesome resources Question 3d Fig. 2 is a diagram of the circulatory system. The blood vessels are labelled with letters. Fig. 2 Complete Table 1 by identifying the letter of the named blood vessel in Fig. 2. Table 1 name of blood vessel aorta pulmonary artery renal vein vena cava letter [4 marks] Question 3e Describe how the structures of the circulatory system maintain a one-way flow of blood. Page 8 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to savemyexams.com for more awesome resources [4 marks] Page 9 of 9 © 2015-2023 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers
