*P75617A0112*
Turn over P75617A
©2023 Pearson Education Ltd.
Z:1/1/1/1/Please check the examination details below before entering your candidate information Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Tuesday 17 October 2023
Morning (Time: 1 hour 20 minutes)WBI13/01Paperreference Total Marks Biology
International Advanced Subsidiary/Advanced Level
UNIT 3: Practical Skills in Biology I
You must have:Scientific calculator, ruler, HB pencil
Instructions
• Use black ink or ball-point pen.• Fill in the boxes at the top of this page with your name, centre number and candidate number.• Answer all questions.• Answer the questions in the spaces provided – there may be more space than you need .
Information
• The total mark for this paper is 50.• The marks for each question are shown in brackets – use this as a guide as to how much time to spend on each question .
Advice
• Read each question carefully before you start to answer it.• Try to answer every question.• Check your answers if you have time at the end. *P75617A0212*
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
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2
Answer ALL questions.
Write your answers in the spaces provided.
1 The phot
ograph shows two human cheek cells on a microscope slide. The mean diameter of human cheek cells is 60 μm.
A
(Source: © BIOPHOTO ASSOCIATES / SCIENCE PHOT O LIBRARY) (a) (i) Descr ibe a procedure for the accurate determination of the diameter of cell A.
(5)
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Turn over P75617A
©2023 Pearson Education Ltd.
Z:1/1/1/1/Please check the examination details below before entering your candidate information Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Tuesday 17 October 2023
Morning (Time: 1 hour 20 minutes)WBI13/01Paperreference Total Marks Biology
International Advanced Subsidiary/Advanced Level
UNIT 3: Practical Skills in Biology I
You must have:Scientific calculator, ruler, HB pencil
Instructions
• Use black ink or ball-point pen.• Fill in the boxes at the top of this page with your name, centre number and candidate number.• Answer all questions.• Answer the questions in the spaces provided – there may be more space than you need .
Information
• The total mark for this paper is 50.• The marks for each question are shown in brackets – use this as a guide as to how much time to spend on each question .
Advice
• Read each question carefully before you start to answer it.• Try to answer every question.• Check your answers if you have time at the end. *P75617A0212*
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
2
Answer ALL questions.
Write your answers in the spaces provided.
1 The phot
ograph shows two human cheek cells on a microscope slide. The mean diameter of human cheek cells is 60 μm.
A
(Source: © BIOPHOTO ASSOCIATES / SCIENCE PHOT O LIBRARY) (a) (i) Descr ibe a procedure for the accurate determination of the diameter of cell A.
(5)
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