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Pearson Edexcel Level 3 GCE Advanced PAPER 2: Energy, Exercise and Coordination QP JUNE 2024
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Pearson Edexcel Level 3 GCE Advanced PAPER 2: Energy, Exercise and Coordination QP JUNE 2024

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  • September 7, 2024
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  • pearson edexcel level 3 gce advanced paper 2 ener

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Please check the examination details below before entering your candidate information
Candidate surname Other names


Centre Number Candidate Number




Pearson Edexcel Level 3 GCE
Friday 14 June 2024
Morning (Time: 2 hours) Paper
reference 9BN0/02
Biology A (Salters Nuffield) ■ ■


Advanced
PAPER 2: Energy, Exercise and Coordination

You must have: Total Marks
Scientific calculator, pencil, ruler

Pearson Edexcel Level 3 GCE Advanced PAPER 2: Energy, Exercise and Coordination QP JUNE 2024
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.
• Show your working in any calculation questions and include units in your
answer where appropriate.
• Answer the questions in the spaces provided
– there may be more space than you need.

Information
• The total mark for this paper is 100.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• You may use a scientific calculator.
• Instructure
question(s) marked with an asterisk (*), marks will be awarded for your ability to
your 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.
• answer every question.
Try to

• Check your answers if you have time at the end. Turn over


P74457RA
©2024 Pearson Education Ltd.
F:1/1/1/1/1/1/

, Answer ALL questions. Write your answers in the spaces provided.

Some questions must be answered with a cross in a box . If you change your mind about an




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answer, put a line through the box and then mark your new answer with a cross .

1 Cells in the human brain use glucose as a respiratory substrate.

(a) The diagram represents a glucose molecule.
The letters P–V represent atoms or groups in the glucose molecule used as a
respiratory substrate.

P

Q R

V S

U T

(i) Which atom does R represent?




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(1)
A carbon

B hydrogen

C nitrogen

D oxygen


(ii) Which group does P represent?
(1)
A CH2OH
B CH3
C COOH
D OH
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2
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, (b) PET, MRI and fMRI are methods for scanning the brain.
PET uses labelled glucose. This glucose can be detected so that PET can be used
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to identify brain tumours.

(i) Describe the advantages of using PET and fMRI rather than MRI scans to
investigate a possible tumour in the brain.
(2)

. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . ......................



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. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . . . . .. . .. . .. . .. . .. . .. . .. . .. . . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . ......................



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(ii) The images show brain scans produced from two imaging techniques other
than PET.




Image 1 Image 2
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(Source: ZEPHYR/SCIENCE PHOTO LIBRARY) (Source: ALFRED PASIEKA/SCIENCE PHOTO LIBRARY)

State how image 1 can be identified as being produced by CT and image 2
by MRI.
(1)

. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . ......................



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3
■■■■ Turn over

, (c) The diagram shows a human brain.




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P



Q




Brain tumours can change brain function.
Describe the possible effects of brain tumours in parts P and Q.
(2)

P . . . . . . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . ... . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . . . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . ..................




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. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . . . .. . .. . .. . .. . .. . .. . . . .. . ... . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . ......................



Q. . . . . . . . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. ... . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . . . .................



. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . . . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . . .. . ... . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . ......................



(Total for Question 1 = 7 marks)




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4
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