June 2021 MA

PhysicsAndMathsTutor.com Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. H GCSE BIOLOGY Higher Tier Paper 1 H 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 Instructions 2 • Use black ink or black ball-point pen. 3 • Pencil should only be used for drawing. 4 • Fill in the boxes at the top of this page. 5 • Answer all questions in the spaces provided. • If you need extra space for your answer(s), use the lined pages at the end of 6 this book. Write the question number against your answer(s). 7 • Do all rough work in this book. Cross through any work you do not want TOTAL to be marked. • In all calculations, show clearly how you work out your answer. Information • The maximum mark for this paper is 100. • The marks for questions are shown in brackets. • You are expected to use a calculator where appropriate. • You are reminded of the need for good English and clear presentation in your answers. * jun2184611H01 * 8461/1H IB/ M/Jun21/E2 4

PhysicsAndMathsTutor.com Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. H GCSE BIOLOGY Higher Tier Paper 1 H Time allowed: 1 hour 45 minutes Materials For this paper you must have: For Examiner’s Use • a ruler Question Mark • a scientific calculator. 1 Instructions 2 • Use black ink or black ball-point pen. 3 • Pencil should only be used for drawing. 4 • Fill in the boxes at the top of this page. 5 • Answer all questions in the spaces provided. • If you need extra space for your answer(s), use the lined pages at the end of 6 this book. Write the question number against your answer(s). 7 • Do all rough work in this book. Cross through any work you do not want TOTAL to be marked. • In all calculations, show clearly how you work out your answer. Information • The maximum mark for this paper is 100. • The marks for questions are shown in brackets. • You are expected to use a calculator where appropriate. • You are reminded of the need for good English and clear presentation in your answers. * jun2184611H01 * 8461/1H IB/ M/Jun21/E2 4

PhysicsAndMathsTutor.com 2 Do not write Answer all questions in the spaces provided. outside the box 0 1 A student prepared some animal cells to view using a microscope. Figure 1 shows the student preparing the cells. Figure 1 0 1 . 1 Name two pieces of laboratory equipment the student could have used to prepare cells to view using a microscope. [ 2 marks ] 1 slide dye / needle microscope stain lmounted / 2 slip pipette scalpel / cover forceps tweezers * 02 * IB/M/Jun21/8461/1H

PhysicsAndMathsTutor.com 2 Do not write Answer all questions in the spaces provided. outside the box 0 1 A student prepared some animal cells to view using a microscope. Figure 1 shows the student preparing the cells. Figure 1 0 1 . 1 Name two pieces of laboratory equipment the student could have used to prepare cells to view using a microscope. [ 2 marks ] 1 microscope slide dye / stain lmounted / needle 2 cover slip pipette scalpel forceps / tweezers * 02 * IB/M/Jun21/8461/1H

PhysicsAndMathsTutor.com 3 Do not write outside the Figure 2 shows the student’s light microscope. box If Figure 2 A- 0 1 A . 2 Name part . [ 1 mark ] eyepiece / lens 0 1 . 3 What is the function of part B ? [ 1 mark ] to the focus image 0 1 . 4 The student tried to look at the cells using the microscope. Suggest one reason why the student could not see any cells when looking through part A . [ 1 mark ] No cells the field slide not correct position in of view in Mirror not position Objective lens dirty not clicked into in correct / place lookinga Question 1 continues on the next page → TTf student is focussed Microscope not Turn over ► * 03 * IB/M/Jun21/8461/1H

PhysicsAndMathsTutor.com 3 Do not write outside the Figure 2 shows the student’s light microscope. box If Figure 2 A- 0 1 . 2 Name part A . [ 1 mark ] eyepiece / lens 0 1 . 3 What is the function of part B ? [ 1 mark ] to focus the image 0 1 . 4 The student tried to look at the cells using the microscope. Suggest one reason why the student could not see any cells when looking through part A . [ 1 mark ] No cells in the field of view slide not in correct position Mirror not in correct position Objective lens dirty / not clicked into place lookinga Question 1 continues on the next page → TTf student is Microscope not focussed Turn over ► * 03 * IB/M/Jun21/8461/1H