Transport in animals — IGCSE Biology (0610) questions by topic
62 questions on transport in animals ask candidates to draw an X marking the left atrium on a heart cross-section, pick out the left and right ventricles from labelled diagrams, and match blood component functions to the correct component, worth 1 to 16 marks.
Identify, state, describe, explain and draw are the command words to expect across 2023 to 2025 papers. Because two separate questions here test the left and the right ventricle on near-identical diagrams, submitting each answer for instant marking exposes immediately if a side has been swapped, before the same mistake repeats on the paired question.
May–June 2025, Paper 11
The diagram shows the blood vessels between the lungs, heart and kidneys in a human. The arrows indicate the direction of blood flow. (The diagram is a schematic of the…
Answer this question and get it marked →May–June 2025, Paper 12
The diagram shows a simplified circulatory system in humans. Four organs are shown in a vertical arrangement connected by arrows showing direction of blood flow: organ A at the…
Answer this question and get it marked →Which blood vessel transports blood from the lungs to the heart? A aorta B pulmonary artery C pulmonary vein D vena cava
Answer this question and get it marked →May–June 2025, Paper 13
Which blood vessel transports blood away from the kidney? A pulmonary artery B pulmonary vein C renal artery D renal vein
Answer this question and get it marked →May–June 2025, Paper 21
In a fish, what is the sequence of structures that blood passes through after it leaves the heart? A gills - muscles - heart B gills - heart - muscles - heart C muscles - gills -…
Answer this question and get it marked →May–June 2025, Paper 22
What is an advantage of a double circulatory system? A It allows the mixing of oxygenated and deoxygenated blood. B It can keep blood pressure high in the lungs. C Less carbon…
Answer this question and get it marked →Which structure in the heart separates oxygenated and deoxygenated blood? A atrioventricular valve B muscle wall of left atrium C semilunar valve D septum
Answer this question and get it marked →Which row shows the features of a vein? relative thickness of the wall to total vessel diameter diameter of the lumen presence or absence of valves --- --- --- --- A thick large…
Answer this question and get it marked →May–June 2025, Paper 23
The diagram shows the direction of net movement of two substances across a human placenta. [Diagram: a central shaded bar represents the placenta, with tissue P on the left and…
Answer this question and get it marked →Which structures in humans and in plants normally carry amino acids? arteries phloem --- --- --- A yes yes B yes no C no yes D no no
Answer this question and get it marked →Through which pathway does blood leave the heart? A through arteries from the atria B through arteries from the ventricles C through veins from the atria D through veins from the…
Answer this question and get it marked →The photomicrograph shows some blood cells. [Photomicrograph: several pale, round, biconcave red blood cells (no nucleus) and one larger cell labelled X with a lobed (multi-lobed)…
Answer this question and get it marked →May–June 2025, Paper 31
Table 6.1 shows some information about three different types of blood vessel. Circle the correct name of the type of blood vessel in each row in Table 6.1. type of blood vessel…
Answer this question and get it marked →May–June 2025, Paper 32
The boxes on the left contain some functions of blood components. The boxes on the right contain the names of some blood components. Draw straight lines from each function to the…
Answer this question and get it marked →May–June 2025, Paper 42
Fig. 2.1 is a photomicrograph of human blood. The image shows numerous round red blood cells, with several labelled structures: E and G are larger nucleated white cells, F is a…
Answer this question and get it marked →May–June 2025, Paper 43
Complete the sentences about the control of blood glucose concentration. Blood glucose concentration increases after a person eats a meal containing carbohydrates. This causes the…
Answer this question and get it marked →May–June 2024, Paper 32
Complete the description of the human circulatory system. The circulatory system is a system of blood vessels with a .................. and .................. to ensure one-way…
Answer this question and get it marked →May–June 2024, Paper 33
Fig. 4.1 is a diagram of the human heart, with structures labelled R, S, T, U, V, W, X and Y. Complete Table 4.1, using Fig. 4.1. Letters may be used once, more than once or not…
Answer this question and get it marked →October–November 2024, Paper 11
In humans, which structures provide cells with oxygen and nutrients? A arteries B capillaries C lungs D veins
Answer this question and get it marked →The diagram shows part of the human circulatory system with blood vessels numbered 1-6, plus head, lungs, kidneys and legs. What are the numbered blood vessels? (columns: vena…
Answer this question and get it marked →October–November 2024, Paper 12
The diagram shows part of a blood vessel, with a key indicating the direction of blood flow. Which evidence in the diagram shows that it is a vein and not an artery? A There is a…
Answer this question and get it marked →The photomicrograph shows two blood cells. What is the function of these cells? A to carry out phagocytosis B to produce antibodies C to transport oxygen D to transport vitamins
Answer this question and get it marked →October–November 2024, Paper 13
The diagram shows blood vessels entering and leaving some organs in the human body: lungs (vessels 1 and 2), heart, kidney (vessels 3 and 4). Which row identifies the pulmonary…
Answer this question and get it marked →October–November 2024, Paper 21
The diagram shows a section through the human heart with valves labelled A, B, C and D. Which valve is the right atrioventricular valve? A A B B C C D D
Answer this question and get it marked →Which row shows the features of a blood vessel that transports blood at low pressure? (columns: size of lumen; thickness of wall; valves) A large; thick; absent B small; thin;…
Answer this question and get it marked →The diagram shows a component of blood. What is the name of this component? A lymphocyte B phagocyte C platelet D red blood cell
Answer this question and get it marked →October–November 2024, Paper 22
The diagram shows the circulatory system of a fish, with a structure labelled X and a key for oxygenated blood, deoxygenated blood and direction of blood flow. What is the…
Answer this question and get it marked →Which factors increase the risk of developing coronary heart disease? 1 increased age; 2 regular exercise; 3 smoking; 4 stress. A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4
Answer this question and get it marked →October–November 2024, Paper 23
The diagram shows the human heart with valves labelled W, X, Y and Z. What are the semilunar valves? A W and X B W and Z C X and Y D Y and Z
Answer this question and get it marked →Which component of the blood transports hormones? A plasma B platelets C red blood cells D white blood cells
Answer this question and get it marked →October–November 2024, Paper 32
Fig. 1.1 is a photomicrograph showing a cross-section of an artery. On Fig. 1.1, identify and label the: artery wall, lumen.
Answer this question and get it marked →May–June 2023, Paper 11
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…
Answer this question and get it marked →The diagram shows a section through the heart, with four parts labelled A, B, C and D. Which part is the septum? A B C D
Answer this question and get it marked →May–June 2023, Paper 12
The diagram shows the human heart with four parts labelled A, B, C and D. Which label shows the left ventricle? A B C D
Answer this question and get it marked →Which row shows the features of an artery or a vein? Columns: blood vessel; diameter of lumen; thickness of wall. A artery; large; thick B artery; small; thin C vein; large; thin…
Answer this question and get it marked →May–June 2023, Paper 13
The diagram shows a section of the human heart with four parts labelled A, B, C and D. Which label identifies the right ventricle? A B C D
Answer this question and get it marked →The diagrams show sections through three types of blood vessel (1, 2 and 3); they are not drawn to the same scale. In which order will red blood cells flow through these vessels…
Answer this question and get it marked →May–June 2023, Paper 21
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…
Answer this question and get it marked →The diagram shows a section through the heart with four parts labelled A, B, C and D. Which part is the septum? A B C D
Answer this question and get it marked →May–June 2023, Paper 22
The diagram shows the human heart with four parts labelled A, B, C and D. Which label shows the left ventricle? A B C D
Answer this question and get it marked →Which row shows the features of an artery or a vein? Columns: blood vessel; diameter of lumen; thickness of wall. A artery; large; thick B artery; small; thin C vein; large; thin…
Answer this question and get it marked →May–June 2023, Paper 23
The diagram shows a section of the human heart with four parts labelled A, B, C and D. Which label identifies the right ventricle? A B C D
Answer this question and get it marked →The diagrams show sections through three types of blood vessel (1, 2 and 3); they are not drawn to the same scale. In which order will red blood cells flow through these vessels…
Answer this question and get it marked →May–June 2023, Paper 31
Fig. 3.1 is a photomicrograph of a sample of human blood, with cells labelled A and B. Identify and describe the functions of the cells labelled A and B in Fig. 3.1.
Answer this question and get it marked →May–June 2023, Paper 33
Complete the sentences about the circulatory system. The heart ......... blood around the body. Blood is carried away from the heart in blood vessels called ......... . Blood is…
Answer this question and get it marked →May–June 2023, Paper 43
Fig. 3.1 is a diagram of a section through a human heart, with structures labelled A (vena cava), B and C. Draw an X on the septum in Fig. 3.1.
Answer this question and get it marked →October–November 2023, Paper 11
Parts of the human circulatory system are listed. 1 arteries 2 capillaries 3 heart 4 veins Which structures have valves to ensure the one-way flow of blood? A 1 and 2 B 2 and 4 C…
Answer this question and get it marked →October–November 2023, Paper 12
What ensures the one-way flow of blood in the human circulatory system? A capillaries B muscles C valves D ventricles
Answer this question and get it marked →In which row is the component of blood correctly linked to its function? Columns: blood component; function. A plasma; transport of carbon dioxide B platelets; phagocytosis C red…
Answer this question and get it marked →October–November 2023, Paper 13
Which statement about the human circulatory system is correct? A a system of blood vessels with the arteries returning blood to the heart B a system of blood vessels with a pump…
Answer this question and get it marked →What are features of arteries? 1 narrow lumen 2 thick muscular wall 3 walls made of a single layer of cells 4 wide lumen A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
Answer this question and get it marked →October–November 2023, Paper 21
The diagrams show the single circulation of a fish and the double circulation of a mammal. In the fish, blood passes through the gill capillaries (R, S, T mark points around the…
Answer this question and get it marked →October–November 2023, Paper 22
The diagram shows a villus, with arrows showing the direction of flow within the vessels associated with the villus, labelled A, B, C and D. Which vessel carries blood to the…
Answer this question and get it marked →The photomicrograph shows some blood cells, with one cell labelled P. What is the function of cell P? A It carries carbon dioxide. B It carries oxygen. C It helps to clot blood. D…
Answer this question and get it marked →The diagram shows the blood vessels associated with the liver, labelled X, Y and Z, with the aorta, the small intestine and the direction of blood flow indicated (not to scale).…
Answer this question and get it marked →October–November 2023, Paper 23
The diagram shows the structure of a villus, with the artery, capillary, lacteal and vein labelled A, B, C and D, and the direction of blood flow indicated. Which letter shows…
Answer this question and get it marked →The graph shows the thickness of the muscular wall in each of the four chambers of the mammalian heart (A, B, C, D). Which chamber is the right ventricle? A B C D
Answer this question and get it marked →Which row shows correct features of the circulatory system of a fish? Columns: number of atria; number of ventricles; number of times blood flows through the heart during one…
Answer this question and get it marked →October–November 2023, Paper 32
Fig. 3.1 is a diagram of a cross-section of a human heart, with structures labelled A, B, C and D. Draw an X on Fig. 3.1 to identify the position of the left atrium.
Answer this question and get it marked →October–November 2023, Paper 33
Arteries are a type of blood vessel. State two structural features of arteries.
Answer this question and get it marked →October–November 2023, Paper 42
Red blood cells are specialised cells that transport oxygen. State the substance in red blood cells that combines with oxygen.
Answer this question and get it marked →Describe two ways in which the circulatory system of a fish is different from the circulatory system of a mammal.
Answer this question and get it marked →Other IGCSE Biology topics
- Organisms and their environment (126)
- Human nutrition (95)
- Characteristics and classification of living organisms (84)
- Coordination and response (83)
- Reproduction (82)
- Inheritance (74)
- Organisation of the organism (cells) (64)
- Plant nutrition (62)
- Transport in plants (59)
- Movement into and out of cells (57)
- Variation and selection (50)
- Respiration (48)