Exam (elaborations)
Edexcel GCSE Biology PAPER 2 Higher tier 2022
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Edexcel GCSE Biology PAPER 2 Higher tier 2022
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Please check the examination details below before entering your candidate information
SE
Candidate surname Other names
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Centre Number Candidate Number
20 dex
E
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Paper
Time 1 hour 45 minutes
reference 1BI0/2H
Biology
PAPER 2
Higher Tier
You must have: Total Marks
Calculator, ruler
Instructions
• Fill
Use black ink or ball‑point pen.
• centrein the boxes at the top of this page with your name,
number and candidate number.
• Answer allthequestions.
Answer
• – there may questions in the spaces provided
be more space than you need.
• Any diagrams maybeNOT
Calculators may used.
• You must show all yourbeworking
accurately drawn, unless otherwise indicated.
• end of your solution. out with your answer clearly identified at the
Information
• The total mark for this paper is 100.
• – usemarks
The for each question are shown in brackets
this as a guide as to how much time to spend on each question.
• structure yourmarked
In questions with an asterisk (*), marks will be awarded for your ability to
answer logically, showing how the points that you make are related
or follow on from each other where appropriate.
Advice
• Read each question carefully before you start to answer it.
• Try to answer every question.
• your answers if you have time at the end.
Check
Turn over
*P69321A0132*
P69321A
©2022 Pearson Education Ltd.
Q:1/1/1/1/1/
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Answer ALL questions. Write your answers in the spaces provided.
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Some questions must be answered with a cross in a box . If you change your mind about an
20 dex
answer, put a line through the box and then mark your new answer with a cross .
E
1 (a) Bloodworms in a pond indicate that the water is polluted.
(i) Which species also indicates that the water is polluted?
(1)
A fertiliser
B lichen
C stonefly
D sludgeworm
(ii) Bloodworms have a high level of haemoglobin in their blood.
Give a reason why this helps them survive in polluted water.
(1)
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
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(iii) Carbon dioxide diffuses from the body of the bloodworm into the water.
Give two factors that affect the rate of diffusion.
(2)
1 . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
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2 . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
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2
*P69321A0232*
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(b) Figure 1 shows part of a diseased rose plant from a garden.
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(Source: © Manfred Ruckszio/Shutterstock)
Figure 1
Explain what Figure 1 indicates about the air quality in the garden.
(2)
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
(Total for Question 1 = 6 marks)
*P69321A0332*
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