IGCSE Biology (0610) — October–November 2024, Paper 22
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Which organisms carry out respiration, growth, movement and excretion? A all animals and all plants B animals only C arthropods and flowering plants only D plants only
Answer this question and get it marked →The chimpanzee belongs to the species Pan troglodytes. What is the genus of this species? A chimpanzee B Pan C Pan troglodytes D troglodytes
Answer this question and get it marked →The diagram shows a tree leaf. Use the key to identify the tree species to which the leaf belongs. Key: leaf shape - leaf is simple, with no leaflets (- leaf edge smooth = A Fagus…
Answer this question and get it marked →What is the function of mitochondria in cells? A to absorb light energy B to produce glucose C to release energy D to transport oxygen
Answer this question and get it marked →Which row shows a function of the cell membrane and a function of the cell wall in a palisade cell? (columns: cell membrane; cell wall) A active transport; active transport B…
Answer this question and get it marked →A specimen is viewed under a microscope with a 10x magnification. The specimen image measures 30 mm. What is the actual size of the specimen? A 3 mm B 30 mm C 300 mm D 3000 mm
Answer this question and get it marked →The diagram shows the water potential of three plant cells (P -360 kPa; Q -400 kPa; R -340 kPa). The more negative the value, the higher the solute concentration. What is the…
Answer this question and get it marked →Which base in a DNA molecule always pairs with a G base? A A B G C C D T
Answer this question and get it marked →The diagram shows the steps in an enzyme-controlled reaction, with a part labelled X (formed when the substrate is bound in the enzyme). What describes the part labelled X? A…
Answer this question and get it marked →The graph shows the effect of temperature on the time taken for the complete digestion of starch (time for complete digestion / minutes against temperature 0-60 C); time is…
Answer this question and get it marked →Which substance is needed to make chlorophyll and which part of the plant absorbs the substance? (columns: substance; part of the plant where the substance is absorbed) A calcium;…
Answer this question and get it marked →The diagram shows a type of plant cell with cytoplasm, nucleus, vacuole and chloroplasts labelled. In which tissue is this cell found? A leaf epidermis B palisade mesophyll C root…
Answer this question and get it marked →Which components of a balanced diet are needed to make haemoglobin and to prevent scurvy and rickets? A carbohydrates and mineral ions B carbohydrates and proteins C mineral ions…
Answer this question and get it marked →Which group of organs belongs to the same organ system? A diaphragm, oesophagus, trachea B heart, liver, lungs C heart, stomach, trachea D oesophagus, intestine, stomach
Answer this question and get it marked →The diagram shows a villus with parts labelled 1, 2, 3 and 4. Which parts transport glucose and fatty acids away from the villus? (columns: glucose; fatty acids) A 3; 1 B 3; 2 C…
Answer this question and get it marked →Which conditions lead to the lowest rate of transpiration in a plant? A cool and high humidity B cool and windy C warm and low humidity D warm and windy
Answer this question and get it marked →The table shows the transport tissues of plants and some substances that may or may not travel through these tissues. Which row is correct for translocation? (columns: plant…
Answer this question and get it marked →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 →Which features of the human body protect against pathogens in food? (columns: red blood cells; stomach acid; white blood cells) A yes; yes; no B yes; no; no C no; yes; yes D no;…
Answer this question and get it marked →What causes air to enter the lungs? (columns: external intercostal muscles; volume of thorax; air pressure in thorax) A contract; decreases; decreases B relax; decreases;…
Answer this question and get it marked →The symbol equation for aerobic respiration is shown: C6HxOy + 6O2 - 6COz + 6H2O. Which numbers represent the letters shown in the equation as x, y and z? (columns: x; y; z) A 2;…
Answer this question and get it marked →A student investigates the rate of anaerobic respiration in yeast. The total volume of carbon dioxide produced is measured every 10 minutes for 40 minutes. Results (time / min :…
Answer this question and get it marked →Which part of an amino acid is removed during deamination? A the carbon-containing part B the nitrogen-containing part C the oxygen-containing part D the iron-containing part
Answer this question and get it marked →Which process happens in a glomerulus in the kidney? A assimilation B deamination C filtration D reabsorption
Answer this question and get it marked →The diagram shows a synapse in a reflex arc, with neurones P and Q. What are the identities of the two neurones and in which direction does the neurotransmitter pass? (columns:…
Answer this question and get it marked →Which responses occur in the iris of the eye when a person walks from a brightly lit area to a dimly lit area? (columns: circular muscles; radial muscles) A contract; contract B…
Answer this question and get it marked →Which statements about hormones are correct? 1 Adrenaline decreases pupil diameter. 2 Adrenaline increases pupil diameter. 3 Insulin decreases blood glucose concentration. 4…
Answer this question and get it marked →Bacteria such as MRSA are resistant to antibiotics. These processes can occur in bacteria: 1 artificial selection; 2 genetic variation; 3 mutation; 4 natural selection. Which…
Answer this question and get it marked →A farmer grows hot pepper plants and sweet pepper plants in different fields. Each year, the farmer saves seeds from the pepper plants to grow the next crop. One year, the farmer…
Answer this question and get it marked →Why do different cells in a human body produce different proteins? A Alleles can be dominant or recessive. B Only particular genes are expressed. C Cells have different genes. D…
Answer this question and get it marked →Which graph shows the mean mass of DNA per cell before, during and after mitosis? (mean mass of DNA per cell / arbitrary units against time, options A-D) A graph A B graph B C…
Answer this question and get it marked →Which statement about gene mutations is correct? A A mutation is a change in the amino acid sequence of DNA. B Mutations are a source of genetic variation. C Mutations are caused…
Answer this question and get it marked →The diagram shows the amount of energy in kJ/m2/yr at each trophic level of a food chain: producers 88 000; primary consumers 14 000; secondary consumers 2000. Approximately how…
Answer this question and get it marked →Which process in the nitrogen cycle removes nitrogen gas from the atmosphere? A decomposition B denitrification C nitrification D nitrogen fixation
Answer this question and get it marked →What is a population? A a group of different organisms living in different areas at the same time B a group of organisms of different species living in the same area C a group of…
Answer this question and get it marked →A farmer has a small pond on their farm land. One year, most of the organisms in the pond die. The next year, the farmer decreases their use of nitrate fertilisers and fewer…
Answer this question and get it marked →The graph shows how the population of a species of bird has increased following a conservation programme (number of breeding pairs of birds against year 1990-2004). What is the…
Answer this question and get it marked →The diagram shows a bacterial cell that is used in genetic modification, with structures labelled A, B, C and D. Which labelled structure makes the bacterium useful for genetic…
Answer this question and get it marked →The diagram shows apparatus used to produce lactose-free milk: milk passed through alginate beads containing X produces milk containing Y. The alginate beads do not react with any…
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