June 2018 QP

PMT PMT Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature F GCSE BIOLOGY Foundation Tier Paper 2F Monday 11 June 2018 Morning Time allowed: 1 hour 45 minutes Materials For Examiner’s Use For this paper you must have: • a ruler Question Mark • a scientific calculator. 1 2 Instructions • Use black ink or black ball-point pen. 3 • Fill in the boxes at the top of this page. 4 • Answer all questions in the spaces provided. 5 • Do all rough work in this book. Cross through any work you do not want to be marked. 6 • In all calculations, show clearly how you work out your answer. 7 8 9 Information • There are 100 marks available on this paper. 10 • The marks for questions are shown in brackets. 11 • You are expected to use a calculator where appropriate. • You are reminded of the need for good English and clear presentation in TOTAL your answers. * Jun1884612F01 * 8461/2F IB/G/Jun18/E7

PMT PMT Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature F GCSE BIOLOGY Foundation Tier Paper 2F Monday 11 June 2018 Morning Time allowed: 1 hour 45 minutes Materials For Examiner’s Use For this paper you must have: • a ruler Question Mark • a scientific calculator. 1 2 Instructions • Use black ink or black ball-point pen. 3 • Fill in the boxes at the top of this page. 4 • Answer all questions in the spaces provided. 5 • Do all rough work in this book. Cross through any work you do not want to be marked. 6 • In all calculations, show clearly how you work out your answer. 7 8 Information 9 • There are 100 marks available on this paper. 10 • The marks for questions are shown in brackets. 11 • You are expected to use a calculator where appropriate. • You are reminded of the need for good English and clear presentation in TOTAL your answers. * Jun1884612F01 * 8461/2F IB/G/Jun18/E7

PMT PMT 2 Do not write outside the 0 1 Figure 1 shows a food chain in a river. box Figure 1 0 1 . 1 Draw one line from each scientific term to the correct organism in the food chain. [3 marks] Organism Scientific term in the food chain Algae Apex predator Invertebrate animals Primary consumer Large fish Producer Small fish * 02 IB/G/Jun18/8461/2F

PMT PMT 2 Do not write 0 1 Figure 1 shows a food chain in a river. outside the box Figure 1 0 1 . 1 Draw one line from each scientific term to the correct organism in the food chain. [3 marks] Organism Scientific term in the food chain Algae Apex predator Invertebrate animals Primary consumer Large fish Producer Small fish * 02 IB/G/Jun18/8461/2F

PMT PMT 3 Do not write outside the 0 1 . 2 Table 1 shows the biomass of the organisms at each stage in the food chain. box Table 1 Organism Biomass in arbitrary units Algae 840 Invertebrate animals 200 Small fish 40 Large fish 10 Calculate the percentage of the biomass of the invertebrate animals that is transferred to the large fish. [2 marks] Use the equation: biomass of large fish percentage = ×100 biomass of invertebrate animals Percentage = Question 1 continues on the next page Turn over ► * 03 * IB/G/Jun18/8461/2F

PMT PMT 3 Do not write outside the 0 1 . 2 Table 1 shows the biomass of the organisms at each stage in the food chain. box Table 1 Organism Biomass in arbitrary units Algae 840 Invertebrate animals 200 Small fish 40 Large fish 10 Calculate the percentage of the biomass of the invertebrate animals that is transferred to the large fish. [2 marks] Use the equation: biomass of large fish percentage = ×100 biomass of invertebrate animals Percentage = Question 1 continues on the next page Turn over ► * 03 * IB/G/Jun18/8461/2F