Blood vessels — Paper 2 · IGCSE Biology (9-1) 0970

17 The diagram shows a circulatory system. 2 3 capillaries of capillaries of the the lungs heart rest of the body 1 4 Which vessels carry oxygenated blood? A 1 and 2 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: D

This question in 0970/22 Oct/Nov 2018

19 The diagram shows cross-sections through three types of blood vessel, not drawn to the same scale. V W X Which section is from a vein and which is from a capillary? vein capillary A V W B W V C W X D X W

1 marks

Answer: C

This question in 0970/21 May/June 2019

19 The diagram shows cross-sections through three types of blood vessel, not drawn to the same scale. V W X Which section is from a vein and which is from a capillary? vein capillary A V W B W V C W X D X W

1 marks

Answer: C

This question in 0970/22 May/June 2019

25 The diagram shows the first part of a kidney tubule and its blood supply. During filtration, protein molecules do not pass through the wall of the glomerulus. Which part contains the highest concentration of protein? B A C direction of blood flow D

1 marks

Answer: D

This question in 0970/22 May/June 2019

18 The diagram shows a section through the heart and its blood vessels. X Which row gives the vessel name and the direction of blood flow in vessel X? vessel name direction of blood flow A aorta towards the lungs B pulmonary artery towards the lungs C pulmonary artery away from the lungs D vena cava away from the lungs

1 marks

Answer: B

This question in 0970/21 May/June 2020

14 The diagram shows the structure of a villus. The arteriole, capillary, lacteal and venule are labelled with letters. Which letter shows where nutrients are absorbed into the blood? A B D C direction of blood flow

1 marks

Answer: B

This question in 0970/22 May/June 2020

18 The diagram shows the human heart and main blood vessels. lungs X rest of body What is the blood vessel labelled X? A aorta B pulmonary artery C pulmonary vein D vena cava

1 marks

Answer: C

This question in 0970/22 May/June 2020

19 What are the main vessels carrying blood to and from the kidney? to kidney from kidney A pulmonary artery pulmonary vein B pulmonary vein pulmonary artery C renal artery renal vein D renal vein renal artery

1 marks

Answer: C

This question in 0970/21 May/June 2021

27 A person's skin looks more red in a warm environment than it does in a cool environment. Which explanation is correct? A The arterioles supplying capillaries in the skin vasodilate and less blood flows to the skin surface. B The arterioles supplying capillaries in the skin vasodilate and more blood flows to the skin surface. C The arterioles supplying capillaries in the skin vasoconstrict and more blood flows to the skin surface. D The arterioles supplying capillaries in the skin vasoconstrict and less blood flows to the skin surface.

1 marks

Answer: B

This question in 0970/22 May/June 2021

19 What do shunt vessels connect? A arterioles to capillaries B arterioles to venules C capillaries to lymphatic vessels D capillaries to venules

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2021

25 A scientist investigated the effect of drinking iced water on skin temperature. They drank a large volume of iced water and monitored the temperature of their skin. The results are shown on the graph. 37.2 37.0 36.8 skin 36.6 temperature / °C 36.4 36.2 36.0 35.8 0 2 4 6 8 10 12 time after drinking iced water / minutes Which explanation of the change in skin temperature during the first 10 minutes is correct? A Vasoconstriction occurred increasing blood flow to the skin. B Vasoconstriction occurred reducing blood flow to the skin. C Vasodilation occurred increasing blood flow to the skin. D Vasodilation occurred reducing blood flow to the skin.

1 marks

Answer: B

This question in 0970/21 May/June 2022

17 The diagram shows the outside of a human heart. Which structure is a coronary artery? B A C D

1 marks

Answer: D

This question in 0970/22 Oct/Nov 2022

17 Which statements describe how the structures in the circulatory system function? 1 a muscular pump to push blood into vessels 2 valves to ensure one-way blood flow 3 veins to take blood away from the heart 4 vessels to return blood to the heart A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: B

This question in 0970/21 May/June 2023

23 Which row shows where glucose will be found in the body of a healthy human after eating a meal? renal artery renal vein glomerulus nephron ureter A yes no yes yes yes B yes yes no no no C yes yes yes yes no D no yes no no yes

1 marks

Answer: C

This question in 0970/21 May/June 2023

18 Which row shows the features of an artery or a vein? diameter thickness blood vessel of lumen of wall A artery large thick B artery small thin C vein large thin D vein small thick

1 marks

Answer: C

This question in 0970/22 May/June 2023

15 The diagram shows a villus. The arrows show the direction of flow within vessels associated with the villus. Which vessel carries blood to the liver? A D C B

1 marks

Answer: D

This question in 0970/22 Oct/Nov 2023

19 The diagram shows the blood vessels associated with the liver. X aorta Y liver key direction of blood flow Z NOT TO small intestine SCALE What are the blood vessels labelled X, Y and Z? X Y Z A hepatic artery hepatic portal vein hepatic vein B hepatic portal vein hepatic artery hepatic vein C hepatic vein hepatic artery hepatic portal vein D hepatic vein hepatic portal vein hepatic artery

1 marks

Answer: C

This question in 0970/22 Oct/Nov 2023

27 What describes how the body maintains a constant internal temperature on a hot day? A Vasoconstriction increases blood flow to the skin surface capillaries. B Vasoconstriction decreases blood flow to the skin surface capillaries. C Vasodilation increases blood flow to the skin surface capillaries. D Vasodilation decreases blood flow to the skin surface capillaries.

1 marks

Answer: C

This question in 0970/21 May/June 2024

24 What is a response of the human body to overheating? A vasoconstriction of arterioles B vasoconstriction of veins C vasodilation of arterioles D vasodilation of veins

1 marks

Answer: C

This question in 0970/21 May/June 2025

18 Which row shows the features of a vein? relative thickness diameter of presence or of the wall to total the lumen absence of valves vessel diameter A thick large absent B thick small present C thin small absent D thin large present

1 marks

Answer: D

This question in 0970/22 May/June 2025

14 Which row names the blood vessel containing the highest blood urea concentration and the blood vessel containing the lowest blood urea concentration? highest blood urea lowest blood urea concentration concentration A hepatic artery hepatic vein B hepatic vein renal vein C hepatic portal vein renal artery D renal vein hepatic portal vein

1 marks

Answer: B

This question in 0970/22 Oct/Nov 2025