IGCSE Sciences - Co-Ordinated (0654) — May–June 2023, Paper 22
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →1 Which is not a characteristic of all living organisms? A excretion B growth C photosynthesis D sensitivity
Answer this question and get it marked →2 The diagram shows a specialised cell from a plant. Z Y X W Which structures not found in animal cells are shown in the diagram and which structure often found in other plant…
Answer this question and get it marked →3 Which row shows the elements and the small molecules that are used to make the larger molecules? small larger elements molecule molecule A carbon, hydrogen and oxygen glucose…
Answer this question and get it marked →4 Which type of molecules speed up chemical digestion? A carbohydrates B enzymes C hormones D fatty acids
Answer this question and get it marked →5 The graph shows the effect of increasing light intensity on the rate of photosynthesis of a submerged aquatic plant. rate of photosynthesis X light intensity Which factor is…
Answer this question and get it marked →6 What is one of the functions of bile? A denaturing lipase B digesting fats C emulsifying fats D increasing acidity 4
Answer this question and get it marked →7 The diagram shows the circulatory system of a mammal. lungs X Y Z heart rest of body Which row shows the correct names for blood vessels X and Y and for chamber Z? X Y Z A…
Answer this question and get it marked →8 During cold weather, warm blooded animals, such as mammals and birds, require more food. Which statement explains the reason for this? energy required to rate of maintain…
Answer this question and get it marked →9 The diagram shows an experiment using the shoots of seedlings. light control shoot shoot five at start days later light lightproof cover shoot five placed over shoot tip days…
Answer this question and get it marked →10 The diagram shows a section through a flower. S R P Q Which labelled structures are the anther and the ovary? anther ovary A R P B R Q C S P D S Q
Answer this question and get it marked →11 Which process results in the development of strains of antibiotic-resistant bacteria? A artificial selection B discontinuous variation C natural selection D selective breeding 7
Answer this question and get it marked →12 The diagram shows a food web. jellyfish turtles phytoplankton zooplankton fish shellfish seabirds Which groups of organisms are both primary and secondary consumers? A fish and…
Answer this question and get it marked →13 The flow diagram shows the consequence of the overuse of fertilisers on farm land. leaching fast growth death of fast growth death of fertiliser of algae algae of X…
Answer this question and get it marked →14 Hexane and octane are liquid hydrocarbons that mix together. Which apparatus is used to separate a mixture of these two liquids? A B C D xxxxxxxxx heat xxxxxxxxx heat
Answer this question and get it marked →15 When solid zinc carbonate is heated, a different solid and a gas are formed. Which type of change occurs? A chemical B exothermic C physical D separation
Answer this question and get it marked →16 An atom of osmium is represented by 190 76 Os. How many neutrons are in this atom? A 76 B 114 C 190 D 266
Answer this question and get it marked →17 Aqueous potassium bromide reacts with aqueous silver nitrate to produce a cream precipitate. What is the ionic equation for this reaction? A Ag+(aq) + Br–(aq) AgBr(s) B…
Answer this question and get it marked →18 Which statement about the extraction of aluminium from its ore by electrolysis is correct? A Aluminium gains electrons from the anode. B Aluminium ions are oxidised at the…
Answer this question and get it marked →19 Which statement explains why increasing the concentration of reactants increases the rate of a reaction? A The proportion of particles that possess the activation energy is…
Answer this question and get it marked →20 Copper(II) sulfate is produced by reacting copper(II) oxide with dilute sulfuric acid. The stages in the process to produce pure dry crystals are listed. 1 Leave to crystallise…
Answer this question and get it marked →21 The box lists four substances. Br2 CO Cu Na Which substance is an element that forms a basic oxide and coloured compounds? A Br2 B CO C Cu D Na 10
Answer this question and get it marked →22 Car engines produce pollutant gases. Which gases are removed by catalytic converters? A carbon monoxide, nitrogen monoxide and sulfur dioxide B carbon monoxide and nitrogen…
Answer this question and get it marked →23 In the blast furnace, which substance is added to make slag? A calcium carbonate B carbon dioxide C carbon monoxide D coke
Answer this question and get it marked →24 Which catalyst is used in the Contact process? A iron B phosphoric(V) acid C nickel D vanadium(V) oxide
Answer this question and get it marked →25 Which statements about limestone are correct? 1 It contains calcium oxide. 2 It is used to manufacture lime. 3 It neutralises acidic industrial waste products. 4 It neutralises…
Answer this question and get it marked →26 Naphtha is obtained by the fractional distillation of petroleum. Which statements about naphtha are correct? 1 It burns to form carbon dioxide and water. 2 It is a mixture of…
Answer this question and get it marked →27 The structure of an addition polymer is shown. H CH3 C C CH3 H n Which monomer is used to make this polymer? A B C D H H CH3 CH3 H H H CH3 C C C C C C C C H H H H CH3 H H CH3
Answer this question and get it marked →28 The diagram shows the speed–time graph for an object moving in a straight line. speed 0 0 10 time / s Which statement about the motion of the object is not correct? A The…
Answer this question and get it marked →29 A uniform beam has a mass of 12 kg and a length of 4.0 m. The beam rests on horizontal ground. One end of the beam is now raised from the ground by a vertical force F. The…
Answer this question and get it marked →30 A solid block of weight 14 N rests on a horizontal table. The pressure on the table due to the block is 70 Pa. What is the area of the surface of the block in contact with the…
Answer this question and get it marked →31 Which object is mainly responsible for the energy stored in tides in the sea? A Mars B the Earth C the Moon D the Sun
Answer this question and get it marked →32 Which statement about gas particles is not correct? A Increasing the temperature of a gas makes the gas particles move more slowly. B The gas particles are in constant random…
Answer this question and get it marked →33 Two methods of cooking are grilling under a red-hot heater and frying in a shallow metal pan. heater food shallow metal pan air food method 1: grilling method 2: frying How…
Answer this question and get it marked →34 An object is placed in front of a plane mirror on a wall. What are the characteristics of the image formed? A same size as object and inverted top to bottom B same size as…
Answer this question and get it marked →35 A ray of light in air enters glass at an angle of incidence of 34. The refractive index of glass is 1.5. What is the angle of refraction of the ray of light in the glass? A…
Answer this question and get it marked →36 Which material is used for the core of an electromagnet? A aluminium B copper C iron D steel
Answer this question and get it marked →37 There is a current-carrying wire perpendicular to the page. The direction of the current is into the page. Which diagram shows the pattern and direction of the magnetic field…
Answer this question and get it marked →38 When a straight conductor moves through a magnetic field, an electromotive force (e.m.f.) is induced between the ends of the conductor. Which factor does not affect the…
Answer this question and get it marked →39 Cables transmit electrical power. The power input to the cables is constant, but the voltage input is increased. What happens to the power loss from the cables, and what…
Answer this question and get it marked →40 The diagram shows a current-carrying conductor in a magnetic field. The direction of the current is shown. current N S In which direction is the force on the wire due to the…
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