*P75620A0124*
Turn over P75620A
©2023 Pearson Education Ltd.
Z:1/1/1/1/1/1/Please check the examination details below before entering your candidate information Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Wednesday 25 October 2023
Morning (Time: 1 hour 20 minutes)WBI16/01Paperreference Total Marks Biology
International Advanced Level
UNIT 6: Practical Skills in Biology II
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 .
• Show all your working in calculations and include units where appropriate.
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.• Keep an eye on the time. • Try to answer every question.• Check your answers if you have time at the end. *P75620A0224*
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.
1 The phot
ograph shows fruits on a camu camu tree.
(Source: © ‘guentermanaus / Shutterstock) Camu camu trees grow in the Amazon basin of South America. The fruits ha
ve a very high vitamin C content. (a) A student f
ound the vitamin C content of camu camu fruits changed with the length of time in storage. Fr
eshly picked fruits had a mean vitamin C content of 2 400 mg per 100 g. Af
ter being stored for 28 days, the mean vitamin C content was 1 848 mg per 100 g
. Calcula
te the percentage decrease in vitamin C found in the camu camu fruits after 28 days.
(1)
Answer ............................... % *P75620A0324* Turn over 3
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 (b) The student read that ‘the vitamin C content of these fruits decreases the most dur
ing the first 14 days of storage. ’ Descr
ibe an experiment to investigate the change in vitamin C content when the fruits are stored for 14 days compared with 28 days.
(6)
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................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Turn over P75620A
©2023 Pearson Education Ltd.
Z:1/1/1/1/1/1/Please check the examination details below before entering your candidate information Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Wednesday 25 October 2023
Morning (Time: 1 hour 20 minutes)WBI16/01Paperreference Total Marks Biology
International Advanced Level
UNIT 6: Practical Skills in Biology II
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 .
• Show all your working in calculations and include units where appropriate.
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.• Keep an eye on the time. • Try to answer every question.• Check your answers if you have time at the end. *P75620A0224*
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.
1 The phot
ograph shows fruits on a camu camu tree.
(Source: © ‘guentermanaus / Shutterstock) Camu camu trees grow in the Amazon basin of South America. The fruits ha
ve a very high vitamin C content. (a) A student f
ound the vitamin C content of camu camu fruits changed with the length of time in storage. Fr
eshly picked fruits had a mean vitamin C content of 2 400 mg per 100 g. Af
ter being stored for 28 days, the mean vitamin C content was 1 848 mg per 100 g
. Calcula
te the percentage decrease in vitamin C found in the camu camu fruits after 28 days.
(1)
Answer ............................... % *P75620A0324* Turn over 3
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 (b) The student read that ‘the vitamin C content of these fruits decreases the most dur
ing the first 14 days of storage. ’ Descr
ibe an experiment to investigate the change in vitamin C content when the fruits are stored for 14 days compared with 28 days.
(6)
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