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KEY STAGE 4 Blood Questions 1 of 21 © Boardworks Ltd 2003 Teacher’s Notes A slide contains teacher’s notes wherever this icon is displayed - To access these notes go to ‘Notes Page View’ (PowerPoint 97) or ‘Normal View’ (PowerPoint 2000). Notes Page View Normal View Flash Files A flash file has been embedded into the PowerPoint slide wherever this icon is displayed – These files are not editable. 2 of 21 © Boardworks Ltd 2003 3 of 21 © Boardworks Ltd 2003 4 of 21 © Boardworks Ltd 2003 5 of 21 © Boardworks Ltd 2003 6 of 21 © Boardworks Ltd 2003 Activity 7 of 21 © Boardworks Ltd 2003 8 of 21 © Boardworks Ltd 2003 9 of 21 © Boardworks Ltd 2003 10 of 21 © Boardworks Ltd 2003 Multiple choice questions 11 of 21 © Boardworks Ltd 2003 Which of these is not a function of blood? A To support the body. B To fight disease. C To carry gases around the body. D To carry hormones to their site of action. 12 of 21 © Boardworks Ltd 2003 What is the name of the pigment within red blood cells? A haemoglycin B haemoglobin C haemoglycerol D haemoglucose 13 of 21 © Boardworks Ltd 2003 Which of these descriptions best suits the shape of a red blood cell? A a doughnut B a round flat plate C a biconcave disc D a disc shaped shell 14 of 21 © Boardworks Ltd 2003 What is missing from a red blood cell? A the nucleus B the cytoplasm C the cell membrane D answers A and B 15 of 21 © Boardworks Ltd 2003 What is the name of the straw-coloured liquid in which blood cells are suspended? A haem liquid B cytoplasma C blood fluid D plasma 16 of 21 © Boardworks Ltd 2003 What percentage of blood is made up of plasma? A 20% B 40% C 55% D 65% 17 of 21 © Boardworks Ltd 2003 Which of the these substances are carried by blood plasma? A oxygen, glucose, urea and amino acids B amino acids, carbon dioxide, oxygen and fatty acids C fatty acids, glucose, oxygen, glycerol D urea, fatty acids, amino acids and carbon dioxide 18 of 21 © Boardworks Ltd 2003 Blood plasma... A defends the body against invading microbes. B helps the blood to clot. C transports urea from the liver to the kidneys. D binds to oxygen. 19 of 21 © Boardworks Ltd 2003 Red blood cells... A need oxygen. B attract carbon dioxide. C carry oxygen. D repel carbon dioxide. 20 of 21 © Boardworks Ltd 2003 The white blood cells are larger than red blood cells. Their job is to... A make the blood clot. B carry oxygen to the cells of the body. C defend the body against invading microbes. D carry carbon dioxide. 21 of 21 © Boardworks Ltd 2003