IGCSE Biology (0970) — May–June 2024, Paper 12
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Some yeast, sugar and water are mixed in a test-tube. The diagrams show the test-tube at the start and after one hour (bubbles of gas are produced). Which process causes this…
Answer this question and get it marked →The diagram shows an animal. Use the key to identify the animal. 1 has two wings → go to 2; has four wings → go to 3 2 has antennae much shorter than legs → A; has antennae about…
Answer this question and get it marked →Donkeys and zebras are different species. They can breed to produce an animal called a zedonk. Zedonks are not fertile. Which statement is correct? A Zedonks and donkeys are the…
Answer this question and get it marked →Crabs are arthropods with 10 jointed legs and two pairs of antennae. To which arthropod class do they belong? A arachnids B crustaceans C insects D myriapods
Answer this question and get it marked →Heart muscle cells have a high rate of metabolism. Which structure do they require to be present in high numbers? A chloroplasts B mitochondria C cell walls D vacuoles
Answer this question and get it marked →The diagram shows a fly. The line XY represents the length of the wing. The length of line XY is 26 mm. The actual size of the wing between X and Y is 4 mm. What is the…
Answer this question and get it marked →What is an example of diffusion? A dust particles being moved by ciliated cells in the trachea B oxygen molecules moving into a red blood cell in the lungs C pollen grains moving…
Answer this question and get it marked →The diagram shows apparatus used to investigate osmosis. The volumes of solutions A, B, C and D (each in a glass tube above a partially permeable membrane in water) were the same…
Answer this question and get it marked →Which row describes active transport? Columns: movement of water; uses energy from respiration; movement through a cell membrane. A yes; no; no B yes; no; yes C no; yes; no D no;…
Answer this question and get it marked →Iodine solution is added to a food sample that contains starch. What is the colour of the sample after the iodine solution has been added? A blue-black B purple C red D yellow
Answer this question and get it marked →Which graph (A–D) shows the effect of temperature on the activity of an enzyme? Each graph plots enzyme activity against temperature (0–100 °C). A B C D
Answer this question and get it marked →Which of these statements about enzymes are correct? 1 enzymes are proteins 2 enzymes are used up during chemical reactions 3 enzymes speed up metabolic reactions A 1, 2 and 3 B 1…
Answer this question and get it marked →The diagram shows a cross-section of part of a leaf with cells labelled A, B, C and D. Which cell controls the rate of gas exchange? A B C D
Answer this question and get it marked →The diagram shows two cells (one plant cell and one animal cell). Which process happens in only one of these cells? A controlling the chemical reactions in the cell B controlling…
Answer this question and get it marked →Which organ is part of the digestive system? A colon B larynx C vena cava D ureter
Answer this question and get it marked →The diagram shows the human alimentary canal with parts labelled A, B, C and D. Where is most digested food absorbed into the blood? A B C D
Answer this question and get it marked →The diagram shows a human tooth with layers labelled A, B, C and D. Which layer is dentine in the diagram of a human tooth? A B C D
Answer this question and get it marked →The diagram shows a human jaw with teeth labelled A, B, C and D. Which labelled tooth is an incisor? A B C D
Answer this question and get it marked →The diagram shows the human digestive system with parts labelled A, B, C and D. Where does protease act? A B C D
Answer this question and get it marked →Which statement describes transpiration? A Water is pulled upwards by active transport. B Water is pulled up from the roots by phloem. C Water moves by osmosis inside the xylem…
Answer this question and get it marked →Which statement describes the circulation of blood in the human body? A Blood is pumped away from the heart by the atria. B Blood is pumped away from the heart through arteries. C…
Answer this question and get it marked →Which method of pathogen transmission is direct? A breathing in pathogens in air B eating contaminated food C transfusing contaminated blood D touching a door handle that has…
Answer this question and get it marked →Which statement describes anaerobic respiration? A Anaerobic respiration in humans produces lactic acid and carbon dioxide. B Anaerobic respiration in yeast produces water and…
Answer this question and get it marked →The diagram shows organs in the human body labelled A, B, C and D. Which organ is responsible for the excretion of urea in the human body? A B C D
Answer this question and get it marked →Which part of the eye contains light receptors? A cornea B iris C lens D retina
Answer this question and get it marked →Which row shows the effects of adrenaline secretion? Columns: pupil diameter; heart rate. A decreases; decreases B decreases; increases C increases; decreases D increases;…
Answer this question and get it marked →A plant pot is placed on its side. Diagrams A–D show plants with the direction of light indicated. Which diagram shows a plant with roots showing gravitropism and shoots showing…
Answer this question and get it marked →The graph shows how the percentage effectiveness of antibiotic F against MRSA bacteria varied between 1980 and 2000. What is a correct conclusion from the graph? A Antibiotic F…
Answer this question and get it marked →Which statement describes asexual reproduction? A Gametes are involved in this type of reproduction. B Offspring are genetically different from each other. C Offspring are…
Answer this question and get it marked →What is the function of the acrosome in a sperm cell? A The acrosome contains enzymes that digest the jelly coat of an egg cell. B The acrosome is needed for the sperm cell to…
Answer this question and get it marked →Diagrams A–D show gametes and nuclei (key: female gamete, male gamete, nucleus). Which diagram shows fertilisation? A B C D
Answer this question and get it marked →What is HIV? A a bacterium B an enzyme C a pathogen D an antibody
Answer this question and get it marked →What describes an allele? A an alternative form of a chromosome made of DNA B an alternative form of a chromosome made of protein C an alternative form of a gene made of DNA D an…
Answer this question and get it marked →The images show four animals: 1 sheep, 2 eagle, 3 tortoise, 4 tiger. Which two animals show adaptive features for being secondary consumers? A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4
Answer this question and get it marked →A gene is added to the genetic material of an avocado plant. This gene makes the avocado fruits stay ripe for longer before they start to decompose. What is this process an…
Answer this question and get it marked →The diagram shows a food chain: plant leaf → slug → frog → fox. Which terms describe the position of the fox in this food chain? Columns: consumer; trophic level. A quaternary;…
Answer this question and get it marked →These are processes found in the carbon cycle: • combustion • decomposition • feeding • photosynthesis • respiration How many of these processes release carbon dioxide into the…
Answer this question and get it marked →Which change occurs when areas of forest are cleared for farming? A decreased release of carbon dioxide into the atmosphere B increased biodiversity C increased loss of soil D…
Answer this question and get it marked →What is a use of ethanol? A biofuel production B biological washing powder C bread-making D fruit juice production
Answer this question and get it marked →The diagram shows a label on a container of biological washing powder: works at low temperatures; contains protease; contains lipase; keep out of reach of children. The table…
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