1 1 The diagram below shows five different mammals. They are not drawn to the same scale. A B C D E Use the key to identify the mammals shown. key 2 name of mammal 1 (a) has ears more than half the length of the head O. cuniculus (b) has ears less than half the length of the head go to 2 2 (a) has fur on tail all one colour go to 3 (b) has fur on tip of tail a different colour to the rest of tail fur go to 4 3 (a) has webbed feet ( skin between the toes) M. vison (b) does not have webbed feet ( no skin between the toes) M.leucurus 4 (a) has white fur on the end of the tail V. vulpes (b) has black fur on the end of the tail M. erminea Complete the table below by writing the names of the five mammals. mammal name of mammal A B C D E [4] [Total: 4] 2 Respiration is one of the characteristics of living things. State the names of three other characteristics of living things. 1 ............................................................................................................................................... 2 ............................................................................................................................................... 3 ............................................................................................................................................... [3] [Total: 3] 3 3 The diagram below shows five different mammals. The diagram is not drawn to scale. A B C D E Use the key to identify the mammals shown in the diagram. Write the letter of each species (A to E) in the correct box beside the key. 4 key letter 1 (a) has visible external ears go to 2 (b) does not have visible external ears Eschrichtius robustus 2 (a) stands on four legs go to 3 (b) stands on two legs go to 4 3 (a) has two horns between its ears Antidorcas marsupialis (b) has two horns in front of its ears Diceros bicornis 4 (a) has ears placed on top of head Macropus rufus (b) has ears placed at the side of head Homo sapiens [4] [Total: 4] 5 4 The diagram below shows five molluscs. They all live in the sea or on the shore. C A B E D Use this key to identify these molluscs. 1 2 3 4 Shell has one part Go to 2 Shell has two parts C. edule Shell has a hole in the top F. aperta Shell does not have a hole in the top Go to 3 Shell is narrow, with an obvious point C. australis Shell is rounded with no obvious point Go to 4 Shell is plain, with no pattern L. Littorea Shell is patterned T. regina Write your answers in the Table below. mollusc name A B C D E [4] [Total: 4] 6 5 Aphids are insects that feed on the phloem sap in plants. The diagram below shows aphid with its mouth parts inserted into the stem of a plant. The diagram shows some of the features of xylem. Describe how xylem is adapted for its functions. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [6] 7 [Total: 6] 6 The diagram below shows a cell from a leaf . F G H J K L Use the letters from the diagram to complete the table below. Write one letter only in each box to identify the function. You may use each letter once, more than once or not at all. function letter from diagram controls movement of substances into and out of the cell exerts a pressure to help maintain the shape of the cell produces sugars using light as a source of energy withstands the internal pressure of the cell controls all the activities of the cell [5] [Total: 5] 8 7 Dialysis tubing is an artificial membrane, which is similar to the lining of the intestine. A student investigated the diffusion of glucose through dialysis tubing by using the apparatus shown in the diagram. The student took samples of the water outside the dialysis tubing at 5 minute intervals and tested the samples with Benedict’s solution. The results are shown in the table. time / minutes results of the Benedict’s tests on the water outside the dialysis tubing 0 blue 5 green 10 yellow 15 red Describe and explain the results shown in the table. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [3] [Total: 3] 8 The enzyme catalase is found in lettuce leaves. 9 A student investigated the activity of this enzyme by grinding some lettuce leaves and adding them to a solution of hydrogen peroxide. The volume of oxygen produced was measured until the reaction stopped. The student's results are shown in the graph below. 7 6 × 5 volume of oxygen collected / cm3 × × × × × × × × × 4 × 3 × 2 1 0× 0 (a) (i) 20 40 60 time / s 80 100 120 Describe the results shown in the graph. You will gain credit if you use the data in your answer. ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ [3] 10 (ii) Explain the action of enzymes during a reaction. ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ [3] [Total: 6] 11 9 The diagram shows a method of reproduction that some potato farmers use to produce more potato plants. Potato tubers store starch. Explain why plants store starch. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [2] [Total: 2] 12 10 Explain the role of phloem in plant transport. Use the words source and sink in your answer. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [4] [Total: 4] 13 11 The diagram below shows a section across part of an artery. With reference to the diagram, explain how the structure of an artery is related to its function. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [3] [Total: 3] 12 Mothers may be encouraged to breast-feed their newborn babies. The first milk that a mother secretes is called colostrum and contains antibodies. (a) (i) Name the cells that produce antibodies. ................................................................................................................................ [1] 14 (ii) Explain why it is important for newborn babies to have antibodies. ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ [3] [Total: 4] 13 The diagram shows a section through a human heart. deoxygenated blood from the body deoxygenated blood to the lungs oxygenated blood to the body oxygenated blood from the lungs Y Z State how the part labelled Z in the diagram can be used to monitor the activity of the heart. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [1] [Total: 1] 15 14 The diagram is of a human heart. Use label lines and labels to identify these structures on the diagram: • atrium • septum • ventricle • valve [4] [Total: 4] 16 15 The table shows some statements about arteries, capillaries and veins. Place ticks (✓) in the boxes to show which statements are correct for arteries, capillaries and veins. One has been done for you. statements carry blood away from the heart aretries capillaries veins ✓ supply cells with nutrients and remove waste products return blood to the heart have a thick wall containing muscle and elastic tissue have a thin wall containing muscle and elastic tissue have a very thin wall with no muscle or elastic tissue [5] [Total: 5] 16 Outline the role of the liver in excretion. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. .................................................................................................................................................. [3] [Total: 3]
