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UK GCSE 2006 : Foundation Tier, Biology Paper 1

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Centre Number 71 Candidate Number General Certificate of Secondary Education 2006 Paper 1 Foundation Tier G0901 Science: Biology [G0901] THURSDAY 1 JUNE, MORNING TIME 1 hour. INSTRUCTIONS TO CANDIDATES Write your Centre Number and Candidate Number in the spaces provided at the top of this page. Write your answers in the spaces provided in this question paper. Answer all fourteen questions. For Examiner s use only Question Number 1 2 3 4 5 6 INFORMATION FOR CANDIDATES The total mark for this paper is 80. Quality of written communication will be assessed in question 14(a). Figures in brackets printed down the right-hand side of pages indicate the marks awarded to each question or part question. 7 8 9 10 11 12 13 14 Total Marks G091F6 1523 Marks 1 The diagram shows a metal frame used for counting plants in a field. Examiner Only Marks Remark Metal frame Plant (a) Name the metal frame. __________________________ [1] The area of the metal frame is 0.25 m2. (b) Calculate the number of plants in 1 m2. Number of plants in 1 m2 = _________________ Other sampling methods include: Net Pooter [2] Pitfall trap (c) Which sampling method is best suited for catching ground beetles? butterflies? G091F6 __________________________ [1] __________________________ [1] 1523 2 [Turn over 2 Smoking cigarettes has many harmful effects on the body. Examiner Only Marks Remark (a) Give two diseases of the lungs caused by smoking cigarettes. 1. ___________________________________ [1] 2. ___________________________________ [1] (b) Explain why some countries have banned smoking in public places. _________________________________________________________ _______________________________________________________ [1] (c) Name one chemical in cigarette smoke which affects the heart and describe this effect. _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] G091F6 1523 3 [Turn over 3 The table shows the number of organisms at each stage of a food chain. Examiner Only Marks Organisms Oak Blackbird Hawk 2 Numbers Caterpillar 100 2 Remark 1 Source adapted from: M. Winterbottom and C. Jones, Science SCOPE BIOLOGY, Hodder & Stoughton Educational, 2002 (a) Complete the pyramid of numbers of this food chain. 50 40 30 20 10 0 10 20 30 40 50 [2] The diagram shows the pyramid of biomass for this food chain. Hawk Blackbird Caterpillars Oak tree (b) (i) Explain the larger size of the oak tree bar in the pyramid of biomass. ______________________________________________________ ___________________________________________________ [1] (ii) Give two reasons why the biomass of the oak tree does not all become biomass in the caterpillars. 1. ____________________________________________________ ___________________________________________________ [1] 2. ____________________________________________________ ___________________________________________________ [1] G091F6 1523 4 [Turn over 4 The diagram shows part of the excretory system. Examiner Only Marks Remark A B (a) Complete the diagram to show the position of the bladder. [1] (b) Name parts A and B. A ___________________________________ [1] B ___________________________________ [1] (c) What is the function of the excretory system? _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] G091F6 1523 5 [Turn over 5 The diagram shows part of the carbon cycle. carbon dioxide in the air carbon compounds in animals B A C carbon compounds in plants peat Combustion coal Source: Adapted from M. Roberts, The Living World, Nelson Balanced Science, Thomas Nelson and Sons Ltd, 1991. Examiner Only Marks Remark (a) Name the processes. A __________________________ [1] B __________________________ [1] C __________________________ [1] (b) Use the diagram to help explain the effect of combustion on the carbon cycle. _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] G091F6 1523 6 [Turn over 6 (a) The diagrams show a cross-section through the bladder of a healthy man and one with prostate cancer. Examiner Only Marks Remark Bladder wall Prostate gland Urethra Healthy man Prostate cancer patient (i) Give one way the cancer patient s bladder differs from that of a healthy man. ______________________________________________________ ___________________________________________________ [1] (ii) What is cancer? ______________________________________________________ ___________________________________________________ [2] (b) Men can be screened for prostate cancer. (i) What is screening? ______________________________________________________ ___________________________________________________ [1] (ii) Give one advantage of a screening programme. ______________________________________________________ ___________________________________________________ [1] G091F6 1523 7 [Turn over (d) (i) Give the label on organism C that shows the exoskeleton. Examiner Only Marks Remark _________ [1] (ii) Name the group to which organism C belongs. _______________________ [1] G091F6 1523 9 [Turn over 8 The diagrams show how to sterilise a wire loop used to sample a colony of micro-organisms. Heat wire loop until red hot Allow loop to cool beside flame Examiner Only Marks Remark Sample (a) Name two types of micro-organism. 1. ___________________________________ [1] 2. ___________________________________ [1] (b) Suggest why the loop is allowed to cool before sampling the colony. _________________________________________________________ _______________________________________________________ [1] not allowed to touch an unsterilised surface when cooling. _________________________________________________________ _______________________________________________________ [1] (c) Describe two other precautions which should be taken when working with micro-organisms. _________________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] G091F6 1523 10 [Turn over 9 The diagram shows a section through a heart. Examiner Only Marks Remark Aorta A Vena cava B C (a) Name parts A, B and C. A __________________________ [1] B __________________________ [1] C __________________________ [1] (b) Describe two differences between the blood in the aorta and the vena cava. _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] G091F6 1523 11 [Turn over 10 The diagram shows a section of a leaf. A B C Source: M. Winterbottom and C. Jones, Science SCOPE BIOLOGY, Hodder & Stoughton Educational, 2002. Examiner Only (a) Name parts A, B and C. Marks A __________________________ [1] B __________________________ [1] C __________________________ Remark [1] (b) Use the diagram to help describe the pathway taken by a molecule of carbon dioxide during photosynthesis. _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] (c) Give one way the leaf is adapted to absorb the maximum amount of light for photosynthesis. ______________________________________________________ [1] G091F6 1523 12 [Turn over BLANK PAGE (Questions continue overleaf) G091F6 1523 13 [Turn over 11 (a) Explain how the skin and mucous membranes prevent disease-causing micro-organisms entering the body. Examiner Only Marks Remark Skin _____________________________________________________ _______________________________________________________ [1] Mucous membranes _________________________________________ _______________________________________________________ [1] (b) (i) When micro-organisms enter the blood, white blood cells produce antibodies. Name the structures which stimulate antibody production. __________________________ [1] G091F6 1523 14 [Turn over The diagram shows the effect of antibodies on micro-organisms. Micro-organism Antibodies (ii) Use the diagram to explain the effect of antibodies on microorganisms. Examiner Only Marks Remark ______________________________________________________ ______________________________________________________ ___________________________________________________ [2] (iii) Name the white blood cells which engulf and digest microorganisms. __________________________ [1] G091F6 1523 15 [Turn over 12 (a) Complete the table. Examiner Only Marks Pollutant Prevention Acid rain Lead Damage to environment Remark Burn less coal Brain damage in children Coats leaves and reduces photosynthesis [4] (b) Describe the effect of inhaling carbon monoxide on the human body. _________________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] G091F6 1523 16 [Turn over 13 The diagram shows part of the human alimentary canal. Examiner Only Marks Remark A B C (a) Name parts A, B and C. A __________________________ [1] B __________________________ [1] C __________________________ [1] (b) On the diagram use a line labelled X to show where ingestion occurs. Y to show where absorption of digested food occurs. G091F6 [1] [1] 1523 17 [Turn over The diagram shows a bolus of food inside a section of the intestine. Examiner Only Marks Remark Lumen Circular muscles contract behind the bolus Bolus Circular muscles relax allowing lumen to widen (c) Name and describe the process used to move the bolus of food along the intestine. _________________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] G091F6 1523 18 [Turn over Permission to reproduce all copyright material has been applied for. In some cases, efforts to contact copyright holders may have been unsuccessful and CCEA will be happy to rectify any omissions of acknowledgement in future if notified. S 5/05 900 302507(54)

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