Different parts of the blood have different functions.(a) Different parts of the blood have different functions. Draw lines to match each part of the blood with its correct function. The first one has been done for you. Part of the blood plasma Function produce antibodiesMarks KU PSwhite blood cellscarry oxygenplateletscarries dissolved food and carbon dioxide seal cuts by clotting blood 2red blood cells(b) Blood is carried around the body in different blood vessels. What type of blood vessel has (i) thick walls? (ii) valves? 1 12.The names of some toxic gases produced by burning plastics are shown below. hydrogen chloride carbon monoxide hydrogen cyanide(a) Which gas combines with haemoglobin in red blood cells? .. (b) Which gas burns the lining of the lungs? .. (c) Which gas affects the nervous system? .. 1 1 1[3700/403]Page twoDO NOT WRITE IN THIS MARGIN3.Julie carried out an investigation to measure the mass of metal formed when electricity is passed through different solutions.Marks KU PS2Vdilute copper nitrate solutioncopper metal formingShe put 50 ml of dilute copper nitrate solution into the beaker and set the power supply to 2 volts. After 2 minutes, she measured the mass of copper metal which had formed. She then carried out the experiment using dilute nickel nitrate solution. Here are Julies results. Solution copper nitrate solution nickel nitrate solution Mass of metal formed (g) 0ú08 0ú07The investigation was fair but could be improved to make it more accurate and reliable. Suggest two improvements. 1. . 2. . 2[Turn over[3700/403]Page threeDO NOT WRITE IN THIS MARGIN4. Use the information in the passage to complete the flow diagram. Beer is made from barley. Water is added to start the malting process. The substance produced by malting is called mash. The mash then undergoes mashing, where water is added to dissolve the sugar out of the spent barley. The spent barley is removed. The sugar solution is then boiled with hops and extra sugar. Boiling extracts the flavour from the hops. The spent hops are removed. The resulting hop-flavoured solution then undergoes fermentation. Live yeast is added at this stage. When the yeast dies, it is removed. The final product is beer. Complete the flow diagram. barley Key process malting substance waterMarks KU PSmashingsugar solutionboiling extra sugarspent hopshop flavoured solutionlive yeastdead yeast2beer [3700/403] Page fourDO NOT WRITE IN THIS MARGIN5. Some objects that can be protected against damage are shown below.Marks KU PSSteel farm gateLeather walking bootsAluminium window frameAluminium garage doorWooden floor boardsSteel bridge supports(a) Which one of these objects can be protected by (i) treating with a pesticide? (ii) spraying with a water-proofing chemical? (b) Which two of these objects can be protected by anodising? 1 2 1 1 1[Turn over[3700/403]Page fiveDO NOT WRITE IN THIS MARGIN6.Use the information in the passage below to answer the questions. Polymers Polymers are materials made of giant molecules. Polymer molecules can be linear, branched or cross-linked. Linear and branched molecules form thermoplastic polymers such as polythene, polystyrene and nylon. Thermoplastic polymers soften when heated. Cross-linked molecules form thermosetting polymers. These polymers do not soften when heated. Urea-formaldehyde is a thermosetting polymer used to make electrical plugs and sockets. Bakelite, the first commercially produced man-made polymer, is also thermosetting. Polymers have a wide range of applications due to their useful properties, including strength, good electrical and thermal insulation and resistance to attack by corrosive chemicals. Low density polythene or LDPE is widely used in the packaging industry as a tough, transparent film. High density polythene or HDPE is used where greater strength is required. HDPE is used to make heavy duty bottles and traffic cones. HDPE is also used in the construction industry to make pipes and gutters. Polymer properties can be changed by using additives, such as plasticisers, lubricants, pigments and anti-oxidants. Plasticisers give the polymer more flexibility and lubricants reduce friction. Pigments are used to make final products of different colours. To protect polymers against attack by oxidising agents, anti-oxidants are added. (a) What happens to nylon when it is heated? . (b) What type of molecules are present in Bakelite? Tick (?) the correct answer. linear branched cross-linked (c) (i) Why are traffic cones made from HDPE and not LDPE? (ii) What type of additive can be used to make HDPE bright orange in colour? Marks KU PS1111[3700/403]Page sixDO NOT WRITE IN THIS MARGIN7.(a) The formula below can be used to estimate the adult height of a girl. h=Marks KU PS( f +2 m ( 7h = estimated adult height (cm) f = height of father (cm) m = height of mother (cm)whereKaties mother has a height of 159 cm and her fathers height is 175 cm. What is Katies estimated adult height? Space for workingAnswer cm (b) The heights of some children in Katies nursery were measured. The results are shown below. Child Cameron Jasmine Katie Ryan Sophie Stuart Vitek Age (years) 4 4 3 3 4 4 4 Height (cm) 110 103 92 96 98 109 1152What is the average height of the children aged four years? Space for workingAnswer cm [3700/403] Page seven [Turn over2DO NOT WRITE IN THIS MARGIN8. The pie charts below show how a man lost water from his body on two different days. Monday Tuesday sweat urine exhaled air faecesMarks KU PSThe graph shows the air temperature for each day. 16 14 Temperature (øC) 12 10 8 6 4 2 0 Monday Day TuesdayDraw two conclusions using both the pie charts and the graph. 1 .. .. 2 .. .. 2[3700/403]Page eightDO NOT WRITE IN THIS MARGIN9.Gregor is trying to reduce the cost of heating his home. Gregors heating system is controlled by a thermostat. (a) Describe how a thermostat keeps the temperature steady. . . . . (b) Gregor investigates other factors which might affect the cost of heating his home. Which of the factors listed below will not affect the cost of heating his home? A B C D The type of fuel used in the heating system The air temperature outside his home The size of the garden outside his home The length of time his heating system is switched onMarks KU PS1Underline the correct answer.1[Turn over[3700/403]Page nineDO NOT WRITE IN THIS MARGIN10.Air pollution damages the environment. (a) Use the information in the boxes to answer the questions below. 1 2 destruction of northern pine forests increased exposure 5 to ultraviolet radiation increased erosion of limestone buildings increase in fresh water fish populations 3 decrease in skin cancer decrease in thickness of the ozone layerMarks KU PS46Which two boxes describe the damaging effects of (i) increasing CFC concentrations? Box numbers . and .. (ii) burning fossil fuels? Box numbers . and .. (b) Give one way in which air pollution from factories can be reduced. 1 2 211.The half-lives of three radioactive sources are shown below. Radioactive source Thorium-234 Lead-210 Radon-220 Half-life 24ú1 days 21ú0 years 55 secondsWhich radioactive source would have to be stored for the longest time before it becomes safe? . 1[3700/403]Page tenDO NOT WRITE IN THIS MARGIN12.(a) An oil company carried out a seismic survey to search for oil and gas. Marks KU PS charge recorderlayers of rockExplain how a seismic survey can find oil and gas. . . . (b) Crude oil is separated into fractions in a refinery. Name the process used to separate the oil into fractions. . 13. Some properties of materials are shown below. thermal conductivity flexibility strength electrical conductivity wear resistance hardness 1 2Select the property which means (a) the ability of the material to allow heat to flow through it. . (b) the ability of a material to resist damage caused by impact. . (c) the ability of a material to bend without breaking. . (d) the ability of a material to support a heavy load without breaking. . 1 1 1 1[3700/403]Page eleven[Turn overDO NOT WRITE IN THIS MARGIN14.A car manufacturer tested two types of tyre with different depths of tread to compare stopping distances on wet roads. 90 80 70 60Marks KU PSStopping distance (m)50 40 Maxgrip XT 30 Surestop XP 20 10 0 0 1 2 3 4 5 6 Depth of tread (mm) 7 8 9(a)(i) Draw two conclusions from this graph. 1 . . 2 . . (ii) The legal minimum tread for a tyre is 1ú6 mm. What is the difference in stopping distance between a car with Maxgrip XT tyres and one with Surestop XP tyres when both have a tread of 1ú6 mm? Space for working 2Answer.. m [3700/403] Page twelve1DO NOT WRITE IN THIS MARGIN14.(continued) (b) Tread allows the tyre to give better road grip by displacing water on the road as spray. The table shows the volume of water that each tyre can displace in one second.Marks KU PSDepth of tread (mm) 2 Maxgrip Volume of water XT 3ú4 displaced (litres) Depth of tread (mm) 2 Surestop Volume of water XP 4ú6 displaced (litres)3 3ú8 3 5ú34 4ú3 4 5ú95 4ú8 5 6ú46 5ú4 6 7ú07 6ú0 7 7ú78 6ú7 8 8ú49 7ú4 9 9ú2Use the information in the graph and the table to answer the following questions. (i) A car fitted with Surestop XP tyres has a stopping distance of 48 metres. What volume of water is displaced by each tyre in one second? . litres. (ii) A car is fitted with Maxgrip XT tyres. Each tyre displaces 6ú0 litres of water in one second. What is the cars stopping distance? . m. 1 115.Replacing corroded machinery adds to the costs of industry. Which two of the following show other ways in which corrosion adds to the costs of industry? Cost of fuel for heating Cost of additional labour Cost due to lost production Cost of advertising Cost of sound-proofing machinery Tick (?) the two correct answers. 1[3700/403]Page thirteen[Turn over16.Many people in the UK suffer from medical conditions which affect what they can eat. The table below gives information about some of these conditions. Condition coeliac disease diabetes (Type 2) heart disease lactose intolerance Symptoms diarrhoea, malnutrition, tiredness Dietary advice wheat free dietincreased thirst, loss of weight, low fat and low sugar diet blurred vision pain in chest and arms, heart attacks bloating, nausea, abdominal pain low fat and low sugar diet lactose free dietA menu from a restaurant is shown below.Starters Garlic bread Sweet potato soup Red pepper soup Vegetable tartlets Main courses Bean and green pepper salad Chicken and melon shells Chicken with grapefruit glaze Thai beef salad Tomato and feta tarts Desserts Chocolate and pear tart Fig and apricot crunch Strawberry ice cream Summer fruit mousse V L V W ? W ? VKEY?L V Wlow in fat and sugar lactose free vegetarian wheat free? V ? ? WV W L? VL V WV W L V W[3700/403]Page fourteenDO NOT WRITE IN THIS MARGIN16.(continued) Use the table and the menu to answer the questions below. (a) Mr Thomson has to eat a wheat free diet. (i) From which condition does he suffer? . (ii) Which two main courses can he eat? 1 .. 2 .. (b) Mr Davidson has diabetes. Which dessert should he choose? (c) Mr Smith should only choose chicken with grapefruit glaze as his main course. Give two symptoms of the condition from which he suffers. (d) Mrs Herd has heart disease. She is also a vegetarian. Complete her menu order card.Marks KU PS1111Order Card Starter Main course Dessert 1[Turn over[3700/403]Page fifteenDO NOT WRITE IN THIS MARGIN17.Increasing carbon dioxide levels in the atmosphere cause the ?greenhouse effect, which results in global warming. (a) Describe two environmental changes which result from global warming. 1 . 2 . (b) Burning fuels, such as petrol and diesel, produces carbon dioxide. The table gives information about some alternative fuels. Alternative fuel biodiesel ethanol hydrogen biogas Elements present carbon, hydrogen and oxygen carbon, hydrogen and oxygen hydrogen carbon and hydrogenMarks KU PS2Which of these alternative fuels does not produce carbon dioxide? 18. Parts of the human respiratory system are shown in the boxes below. 1 diaphragm 4 windpipe 5 bronchioles 2 rib cage 6 cilia 3 air sacs 1(a) Which part is kept open by cartilage rings? Box number . (b) Which two parts work together to change the pressure in the lungs? Box numbers .. and (c) Which part is needed for gas exchange between lungs and the blood? Box number . 1 2 1[3700/403]Page sixteenDO NOT WRITE IN THIS MARGIN19.The table shows the cost of fitting different types of insulation in a house and the annual saving in the cost of heating. Cost () Insulation Fitting Cavity wall Underfloor Loft 250 90 250 Saving 160 50 205Marks KU PS(a) Construct a single bar graph to show all of the information in the table. (Additional graph paper, if required, can be found on Page twenty-five.)3(b) Which type of insulation gives savings that pay for the fitting costs most quickly? 1[3700/403]Page seventeen[Turn overDO NOT WRITE IN THIS MARGIN20.The shell of an egg should be thick enough to prevent the egg from breaking when the parent bird sits on it.Marks KU PSThe thickness of the shell is affected by pesticides, as shown in the graph below. 10090 Percentage of normal 80 thickness of shell (%) 70Minimum thickness to prevent breaking60 0 10 20 30 40 50 60 70 80 90 100 110 120 Concentration of pesticide in egg (ppm) (a) Draw one conclusion from the graph. . . (b) If a shell is 72% of normal thickness, what is the concentration of pesticide in the egg? .. ppm (c) Predict the percentage of normal thickness of the shell if an egg has a pesticide concentration of 140 ppm. .. % 1 1 1[3700/403]Page eighteenDO NOT WRITE IN THIS MARGIN20.(continued) (d) An egg has a pesticide concentration of 38ppm. Will the egg break when the parent sits on it? Explain why. . .Marks KU PS121.(a) Different methods of heat loss are described below. A B C Currents of hot gas move upwards. Heat energy is passed through solid from particle to particle. Energy travels in electromagnetic waves.Which letter shows a correct description for (i) conduction? (ii) convection? (iii) radiation? Letter . Letter . Letter . 2(b) Heat loss from hot water tanks can be reduced by lagging. Explain how this type of insulation reduces heat loss. . . 1[Turn over[3700/403]Page nineteenDO NOT WRITE IN THIS MARGIN22.Alcohols can be burned to give out energy. The table shows information about some alcohols. Name of alcohol methanol ethanol propanol butanol Boiling point (øC) 65 79 97 117 Energy given out (kJ/mol) 727 1367 2020 2677Marks KU PSThe diagrams show the number of carbon atoms, hydrogen atoms and oxygen atoms in each alcohol. KEY carbon atom hydrogen atom oxygen atommethanolethanolpropanolbutanol(a) Draw two conclusions using information from both the table and the diagrams. 1 .. .. 2 .. .. 2[3700/403]Page twentyDO NOT WRITE IN THIS MARGIN22.(continued) (b) Predict the boiling point for the alcohol shown in the diagram below.Marks KU PSPredicted boiling point .øC 23. Tobacco smoke contains many harmful substances. (a) Name the substance that is addictive. . (b) The table shows the percentage of adults, aged 16 to 49, who smoke cigarettes. Age range (years) 1619 2024 2534 3549 1619 2024 2534 3549 Percentage who smoke cigarettes (%) 31 35 30 27 24 39 38 3111GenderFemaleMaleIn a sample of 250 women aged 2534 years, how many are smokers? Space for workingAnswer ..1[3700/403]Page twenty-one[Turn overDO NOT WRITE IN THIS MARGIN24.The diagram below shows part of a fresh water food web. diving beetle frogMarks KU PSdragon fly larvaecaddis fly larvaemayfly larvaecopepodmidge larvaeduckweedalgaedead leaves(a) These organisms are linked together in a much larger food web. What is the advantage of a food web having a large number of links? (b) All of the mayfly larvae die out. The number of copepods would Circle the correct answer. Explain your answer. 1 decrease increase stay the same . 1[3700/403]Page twenty-twoDO NOT WRITE IN THIS MARGIN24.(continued) (c) Dead leaves provide energy for the caddis fly larvae and other decomposers. (i) Decomposers break down waste and release substances from it. Which organism from the food web can make use of these substances again? A B C D algae copepod dragon fly larvae diving beetleMarks KU PSUnderline the correct answer. (ii) Name an organism not shown in the food web which is a decomposer. .11[Turn over[3700/403]Page twenty-threeDO NOT WRITE IN THIS MARGIN25.The power output of two wind turbines, A and B, was measured at different wind speeds. The results are shown in the table. Power output (W) Wind speed (km/h) Turbine A 5 10 15 20 25 200 500 1200 2200 3500 Turbine B 500 1400 3000 5200 7600Marks KU PSUsing the same axes, show these results as two line graphs. Label each line graph clearly. (Additional graph paper, if required, can be found on Page twenty-six.)Click here for more on this paper.Click here to have a similar paper done for you by one of our writers within the set deadline at a discounted
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